ESE 2023

What is ESE/ IES ?

Engineering Services Exam comprise of engineers who work under the government of India and designated as Class – 1 officer. They administer a large segment of the public sector economy, which constitutes of Indian Railways, Power, Telecommunications, Central Water engineering, Defense service of Engineers, Central Engineering Service, etc. The nature of work performed by these bureaucrats largely depends on their engineering branch and the service or cadre they are recruited in. The career progression goes smoothly attaining high esteem. The first position offered is that of Asst. Executive engineer and the hierarchy ends at the position of Chairman/ Managing Director.

A combined competitive examination is conducted by the Union Public Services Commission (UPSC) for recruitment to the Engineering Services Exam. The Examination constitutes of a written examination followed by an interview for the personality test. The recruitment of qualified candidates is made under the following categories:

  • Civil Engineering
  • Mechanical Engineering
  • Electrical engineering
  • Electronics & Telecommunication Engineering



(I) Nationality:

A candidate must be either:

  1. a citizen of India, or
  2. a subject of Nepal, or
  3. a subject of Bhutan, or
  4. a Tibetan refugee who came over to India before the 1st January, 1962 with the intention of permanently settling in India, or
  5. a person of Indian origin who has migrated from Pakistan, Burma, Sri Lanka or East African countries of Kenya, Uganda, the United Republic of Tanzania, Zambia, Malawi, Zaire and Ethiopia or from Vietnam with the intention of permanently setting in India.

Provided that a candidate belonging to categories (b), (c), (d) and (e) above shall be a person in whose favour a certificate of eligibility has been issued by the Government of India.

A candidate in whose case a certificate of eligibility is necessary, may be admitted to the examination but the offer of appointment may be given only after the necessary eligibility certificate has been issued to him/her by the Government of India.


(II) Age Limits:

(a). A candidate for this examination must have attained the age of 21 years and must not have attained the age of 30 years on the 1st January, 2019 i.e., he/she must have been born not earlier than 2nd January, 1989 and not later than 1st January, 1998.

(b). The upper age-limit of 30 years will be relaxable up to 35 years in the case of Government servants of the following categories, if they are employed in a Department/ Office under the control of any of the authorities mentioned in column 1 below and apply for admission to the examination for all or any of the Service(s)/Post(s) mentioned in column 2, for which they are otherwise eligible.

  1. A candidate who holds substantively a permanent post in the particular Department/Office concerned. This relaxation will not be admissible to a probationer appointed against a permanent post in the Department/Office during the period of his probation. However, this relaxation will be admissible to a probationer so appointed provided he/she already retains a lien on a permanent post in a Department/Office under the control of any of the authorities mentioned in column 1 below.
  2. A candidate who has been continuously in a temporary service on a regular basis in the particular Department/Office for at least 3 years on the 1st January, 2019.

(c) The upper age-limit prescribed above will be further relaxable :

  1. Up to maximum of five years if a candidate belongs to a Scheduled Caste or a Scheduled Tribe.
  2. Up to maximum of three years in the case of candidates belonging to Other Backward Classes who are eligible to avail of reservation applicable to such candidates. The closing date fixed for the receipt of the application will be treated as the date for determining the OBC status (including that of creamy layer) of the candidates.
  3. Up to maximum of five years if a candidate had ordinarily been domiciled in the State of Jammu and Kashmir during the period from the 1st January, 1980 to the 31st day of December, 1989.
  4. Up to maximum of three years, in the case of Defence Services personnel, disabled in operations during hostilities with any foreign country or in a disturbed area, and released as a consequence thereof.
  5. Up to maximum of five years in the case of Ex-servicemen including Commissioned Officers and ECOs/SSCOs, who have rendered at least five years Military Service as on 1st January, 2019 and have been released (i) on completion of assignment (including those whose assignment is due) to be completed within one year from 1st January, 2019 otherwise than by way of dismissal or discharge on account of misconduct or inefficiency, or (ii) on account of physical disability attributable to Military Service, or (iii) on invalidment.
  6. Up to maximum of five years in the case of ECOs/ SSCOs who have completed an initial period of assignment of five years of Military Service as on 1st January, 2019 and whose assignment has been extended beyond five years and in whose case the Ministry of Defence issues a certificate that they can apply for civil employment and they will be released on three months’ notice on selection from the date of receipt of offer of appointment.
  7. Up to a maximum of 10 years in the case of candidates of PwBD (viz. Locomotor Disability including Cerebral Palsy, Leprosy cured, Dwarfism, Acid Attack victims & Muscular Dystrophy and Hard of Hearing).

(III) Minimum Educational Qualification:

For admission to the examination, a candidate must have –

  1. obtained a degree in Engineering from a University incorporated by an Act of the Central or State Legislature in India or other Educational Institutions established by an Act of Parliament or declared to be deemed as Universities under Section 3 of the University Grants Commission Act, 1956; or
  2. passed Sections A and B of the Institution Examinations of the Institution of Engineers (India); or
  3. obtained a degree/diploma in Engineering from such foreign University/College/Institution and under such conditions as may be recognised by the Government for the purpose from time to time, or
  4. passed Graduate Membership Examination of the Institution of Electronics and Telecommunication Engineers (India); or
  5. passed Associate Membership Examination Parts II and III/Sections A and B of the Aeronautical Society of India; or
  6. passed Graduate Membership Examination of the Institution of Electronics and Radio Engineers, London held after November, 1959

Provided that a candidate for the post of Indian Naval Armament Service (Electronics Engineering Posts) and Indian Radio Regulatory Service Group ‘A’ may possess any of the above qualifications or the qualification mentioned below namely:-

  1. For Indian Naval Armament Service (Electronics Engg. Posts) - M.Sc. degree or its equivalent with Wireless Communication Electronics, Radio Physics or Radio Engineering as a special subject.
  2. For Indian Radio Regulatory Service – M.Sc. degree or its equivalent with Wireless Communication Electronics, Radio Physics or Radio Engineering as a subject or Master’s Degree in Science with Physics and Radio Communication or Electronics or Telecommunication as a special subject.

IES Exam Pattern

Section I

1. The examination shall be conducted according to the following plan:—

  1. Stage-I: Engineering Services (Preliminary/Stage-I) Examination (Objective Type Papers) for the selection of candidates for the Stage-II: Engineering Services (Main/Stage-II) Examination;
  2. Stage-II: Engineering Services (Main/Stage-II) Examination (Conventional Type Papers) and
  3. Stage-III: Personality Test

2. The Engineering Services (Preliminary/Stage-I) Examination will consist of two objective type (multiple choices) questions papers and carrying a maximum of 500 marks (Paper 1 – 200 Marks & Paper II – 300 Marks). Only those candidates who are declared by the Commission to have qualified in the Preliminary/Stage-I Examination in the year will be eligible for admission to the Main/StageII Examination of that year provided they are otherwise eligible for admission to the Main/Stage-II Examination. The Marks obtained in Preliminary/Stage-I Examination by the candidates who are declared qualified for admission to the Main/Stage-II Examination will be counted for determining their final order of merit. The number of candidates to be admitted to the Main/Stage-II Examination will be about six to seven time the total approximate number of vacancies to be filled in the year through this examination.

Note I : The Commission will draw a list of candidates to be qualified for Engineering Services (Main/Stage-II) Examination based on the criterion of minimum qualifying marks in General Studies and Engineering Aptitude Paper (Paper-I) and Engineering Discipline specific paper (Paper-II) of Preliminary/Stage-I Examination.

Note II: There will be penalty (Negative Marking) for wrong answers marked by a candidate in the objective type question papers.

  1. There are four alternative for the answers to every question. For each question for which a wrong answer has been given by the candidate, one-third (1/3rd) of the marks assigned to that question will be deducted as penalty.
  2. If a candidate gives more than one answer, it will be treated as a wrong answer even if one of the given answers happen to be correct and there will be same penalty as above for that question.
  3. If a question is left blank i.e. no answer is given by the candidate, there will be no penalty for that question.

3.1 The Engineering Services (Main/stage-II) Examination will consist two conventional type papers in Engineering Discipline specific with duration of three hours and maximum marks of 600 (300 Marks in each paper).

3.2 The Stage-III will consist of Personality Test carrying 200 Marks.

4.1 Candidates who obtain such minimum qualifying marks in the Stage-I: Engineering Services (Preliminary/Stage-I) and StageII: Engineering Services (Main/Stage-II) Examination as may be fixed by the Commission as per its discretion, shall be summoned by them for Stage-III (Personality Test). The number of candidates to be summoned for Personality Test will be about twice the number ofvacancies to be filled. The Personality Test will carry 200 marks (with no minimum qualifying marks).

4.2 Marks obtained by the candidates in the Stage-I:(Preliminary/Stage-I) Examination, Stage-II:(Main/Stage-II) Examination and Stage-III (Personality Test) would determine their final ranking. Candidates will be allotted to the various services keeping in view their ranks in the examination and the preference expressed by them for the various services/posts.

5. Candidates are advised to read carefully special instructions to candidates for conventional type tests and objective type tests given in Appendix-III (Part A and Part B) including the procedure regarding filing in the Answer Sheet of objective type tests in the Examination Hall uploaded on the Commission’s website ( on 26.09.2018.

6. In the Personality Test special attention will be paid to assessing the candidate’s capacity for leadership, initiative and intellectual curiosity, tact and other social qualities, mental and physical energy, powers of practical application and integrity of character.

7. Conventional papers must be answered in English. Question paper will be set in English only.

8. Details of the syllabi for Stage-I: (Preliminary/stage-I) and Stage-II :(Main/Stage-II) are at Section III.



Section II

  1. Stage-I(Preliminary/Stage-I) Examination :-

The Examination shall comprise of two papers



Max. Marks

Category-I Civil Engineering



Paper-I (General Studies and Engineering Aptitude)

2 hrs.


Paper-II (Civil Engineering)

3 hrs









Max. Marks

Category-II Mechanical Engineering



Paper-I (General Studies and Engineering Aptitude)

2 hrs.


Paper-II (Mechanical Engineering)

3 hrs









Max. Marks

Category-III Electrical  Engineering



Paper-I (General Studies and Engineering Aptitude)

2 hrs.


Paper-II (Electrical Engineering)

3 hrs









Max. Marks

Category-IV Electronics and Telecommunication  Engineering



Paper-I (General Studies and Engineering Aptitude)

2 hrs.


Paper-II (Electronics and Telecommunication Engineering)

3 hrs






Details of the syllabi are indicated in Section III.

  1. Stage-II(Main/Stage-II) Examination:-

The Examination shall comprise of two papers




Max. Marks

Category-I Civil Engineering



Paper-I ( Civil Engineering)

3 hrs.


Paper-II (Civil Engineering)

3 hrs









Max. Marks

Category-II Mechanical Engineering



Paper-I (Mechanical Engineering)

3 hrs.


Paper-II (Mechanical Engineering)

3 hrs









Max. Marks

Category-III Electrical  Engineering



Paper-I (Electrical Engineering)

3 hrs.


Paper-II (Electrical Engineering)

3 hrs









Max. Marks

Category-IV Electronics and Telecommunication  Engineering



Paper-I (Electronics and Telecommunication Engineering)

3 hrs.


Paper-II (Electronics and Telecommunication Engineering)

3 hrs






  1. Stage-III(Personality Test) - 200 Marks.

Syllabus for ESE

Standard & Syllabi


The standard of paper in General Studies and Engineering Aptitude (Preliminary Stage-I Examination) will be such as may be expected of an Engineering/Science Graduate. The standard of papers in other subjects will approximately be that of an Engineering Degree Examination of an Indian University. There will be no practical examination in any of the subjects.

General Studies and Engineering Aptitude (Preliminary Examination/Stage-I, Paper I, Objective type, Common to all Candidates)

1. Current issues of national and international importance relating to social, economic and industrial development
2. Engineering Aptitude covering Logical reasoning and Analytical ability
3. Engineering Mathematics and Numerical Analysis
4. General Principles of Design, Drawing, Importance of Safety
5. Standards and Quality practices in production, construction, maintenance and services
6. Basics of Energy and Environment: Conservation, environmental pollution and degradation, Climate Change, Environmental impact assessment
7. Basics of Project Management
8. Basics of Material Science and Engineering
9. Information and Communication Technologies (ICT) based tools and their applications in Engineering such as networking, e-governance and technology based education.
10. Ethics and values in Engineering profession.

Note: The paper in General Studies and Engineering Aptitude will include Knowledge of relevant topics as may be expected from an engineering graduate, without special study. Questions from all the 10 topics mentioned above shall be set. Marks for each Topic may range from 5% to 15% of the total marks in the paper.

Civil Engineering

Contents for syllabi of both the Papers together for Preliminary Examination/Stage-I (objective type Paper-II) and separately for Main/Stage-II Examination (Conventional type Paper-I and Paper-II).


1. Building Materials:

Stone, Lime, Glass, Plastics, Steel, FRP, Ceramics, Aluminum, Fly Ash, Basic Admixtures, Timber, Bricks and Aggregates: Classification, properties and selection criteria;

Cement: Types, Composition, Properties, Uses, Specifications and various Tests; Lime & Cement Mortars and Concrete: Properties and various Tests; Design of Concrete Mixes: Proportioning of aggregates and methods of mix design.

2. Solid Mechanics:

Elastic constants, Stress, plane stress, Strains, plane strain, Mohr’s circle of stress and strain, Elastic theories of failure, Principal Stresses, Bending, Shear and Torsion.

3.Structural Analysis:

Basics of strength of materials, Types of stresses and strains, Bending moments and shear force, concept of bending and shear stresses; Analysis of determinate and indeterminate structures; Trusses, beams, plane frames; Rolling loads, Influence Lines, Unit load method & other methods; Free and Forced vibrations of single degree and multi degree freedom system; Suspended Cables; Concepts and use of Computer Aided Design.

4. Design of Steel Structures:

Principles of Working Stress methods, Design of tension and compression members, Design of beams and beam column connections, built-up sections, Girders, Industrial roofs, Principles of Ultimate load design.

5. Design of Concrete and Masonry structures:

Limit state design for bending, shear, axial compression and combined forces; Design of beams, Slabs, Lintels, Foundations, Retaining walls, Tanks, Staircases; Principles of pre-stressed concrete design including materials and methods; Earthquake resistant design of structures; Design of Masonry Structure.

6. Construction Practice, Planning and Management:

Construction - Planning, Equipment, Site investigation and Management including Estimation with latest project management tools and network analysis for different Types of works; Analysis of Rates of various types of works; Tendering Process and Contract Management, Quality Control, Productivity, Operation Cost; Land acquisition; Labour safety and welfare.



  1. Flow of Fluids, Hydraulic Machines and Hydro Power:

(a) Fluid Mechanics, Open Channel Flow, Pipe Flow:

Fluid properties; Dimensional Analysis and Modeling; Fluid dynamics including flow kinematics and measurements; Flow net; Viscosity, Boundary layer and control, Drag, Lift, Principles in open channel flow, Flow controls. Hydraulic jump; Surges; Pipe networks.

(b) Hydraulic Machines and Hydro power -

Various pumps, Air vessels, Hydraulic turbines – types, classifications & performance parameters; Power house – classification and layout, storage, pondage, control of supply.

2. Hydrology and Water Resources Engineering:

Hydrological cycle, Ground water hydrology, Well hydrology and related data analysis; Streams and their gauging; River morphology; Flood, drought and their management; Capacity of Reservoirs.

Water Resources Engineering : Multipurpose uses of Water, River basins and their potential; Irrigation systems, water demand assessment; Resources - storages and their yields; Water logging, canal and drainage design, Gravity dams, falls, weirs, Energy dissipaters, barrage Distribution works, Cross drainage works and head-works and their design; Concepts in canal design, construction & maintenance; River training, measurement and analysis of rainfall.

3. Environmental Engineering:

(a) Water Supply Engineering:

Sources, Estimation, quality standards and testing of water and their treatment; Rural, Institutional and industrial water supply; Physical, chemical and biological characteristics and sources of water, Pollutants in water and its effects, Estimation of water demand; Drinking water Standards, Water Treatment Plants, Water distribution networks.

(b) Waste Water Engineering:

Planning & design of domestic waste water, sewage collection and disposal; Plumbing Systems. Components and layout of sewerage system; Planning & design of Domestic Waste-water disposal system; Sludge management including treatment, disposal and re-use of treated effluents; Industrial waste waters and Effluent Treatment Plants including institutional and industrial sewage management.

(c) Solid Waste Management:

Sources & classification of solid wastes along with planning & design of its management system; Disposal system, Beneficial aspects of wastes and Utilization by Civil Engineers.

(d) Air, Noise pollution and Ecology:

Concepts & general methodology.

4. Geo-technical Engineering and Foundation Engineering :

(a) Geo-technical Engineering:

Soil exploration - planning & methods, Properties of soil, classification, various tests and interrelationships; Permeability & Seepage, Compressibility, consolidation and Shearing resistance, Earth pressure theories and stress distribution in soil; Properties and uses of geo-synthetics.

(b)Foundation Engineering:

Types of foundations & selection criteria, bearing capacity, settlement analysis, design and testing of shallow & deep foundations; Slope stability analysis, Earthen embankments, Dams and Earth retaining structures: types, analysis and design, Principles of ground modifications.

5. Surveying and Geology:

(a) Surveying:

Classification of surveys, various methodologies, instruments & analysis of measurement of distances, elevation and directions; Field astronomy, Global Positioning System; Map preparation; Photogrammetry; Remote sensing concepts; Survey Layout for culverts, canals, bridges, road/railway alignment and buildings, Setting out of Curves.

(b) Geology:

Basic knowledge of Engineering geology & its application in projects.

6. Transportation Engineering:

Highways - Planning & construction methodology, Alignment and geometric design; Traffic Surveys and Controls; Principles of Flexible and Rigid pavements design.
Tunneling - Alignment, methods of construction, disposal of muck, drainage, lighting and ventilation.
Railways Systems – Terminology, Planning, designs and maintenance practices; track modernization. Harbours – Terminology, layouts and planning.
Airports – Layout, planning & design.

Mechanical Engineering


1. Fluid Mechanics:

Basic Concepts and Properties of Fluids, Manometry, Fluid Statics, Buoyancy, Equations of Motion, Bernoulli’s equation and applications, Viscous flow of incompressible fluids, Laminar and Turbulent flows, Flow through pipes and head losses in pipes.

2. Thermodynamics and Heat transfer:

Thermodynamic systems and processes; properties of pure substance; Zeroth, First and Second Laws of Thermodynamics; Entropy, Irreversibility and availability; analysis of thermodynamic cycles related to energy conversion: Rankine, Otto, Diesel and Dual Cycles; ideal and real gases; compressibility factor; Gas mixtures. Modes of heat transfer, Steady and unsteady heat conduction, Thermal resistance, Fins, Free and forced convection, Correlations for convective heat transfer, Radiative heat transfer – Radiation heat transfer coefficient; boiling and condensation, Heat exchanger performance analysis

3. IC Engines, Refrigeration and Air conditioning:

SI and CI Engines, Engine Systems and Components, Performance characteristics and testing of IC Engines; Fuels; Emissions and Emission Control. Vapour compression refrigeration, Refrigerants and Working cycles, Compressors, Condensers, Evaporators and Expansion devices, Other types of refrigeration systems like Vapour Absorption, Vapour jet, thermo electric and Vortex tube refrigeration. Psychometric properties and processes, Comfort chart, Comfort and industrial air conditioning, Load calculations and Heat pumps.

4. Turbo Machinery:

Reciprocating and Rotary pumps, Pelton wheel, Kaplan and Francis Turbines, velocity diagrams, Impulse and Reaction principles, Steam and Gas Turbines, Theory of Jet Propulsion – Pulse jet and Ram Jet Engines, Reciprocating and Rotary Compressors – Theory and Applications

5. Power Plant Engineering:

Rankine and Brayton cycles with regeneration and reheat, Fuels and their properties, Flue gas analysis, Boilers, steam turbines and other power plant components like condensers, air ejectors, electrostatic precipitators and cooling towers – their theory and design, types and applications;

6. Renewable Sources of Energy:

Solar Radiation, Solar Thermal Energy collection - Flat Plate and focusing collectors their materials and performance. Solar Thermal Energy Storage, Applications – heating, cooling and Power Generation; Solar Photovoltaic Conversion; Harnessing of Wind Energy, Bio-mass and Tidal Energy – Methods and Applications, Working principles of Fuel Cells.



7. Engineering Mechanics:

Analysis of System of Forces, Friction, Centroid and Centre of Gravity, Dynamics; Stresses and Strains-Compound Stresses and Strains, Bending Moment and Shear Force Diagrams, Theory of Bending Stresses-Slope and deflection-Torsion, Thin and thick Cylinders, Spheres.

8. Engineering Materials:

Basic Crystallography, Alloys and Phase diagrams, Heat Treatment, Ferrous and Non Ferrous Metals, Non metallic materials, Basics of Nano-materials, Mechanical Properties and Testing, Corrosion prevention and control

9. Mechanisms and Machines:

Types of Kinematics Pair, Mobility, Inversions, Kinematic Analysis, Velocity and Acceleration Analysis of Planar Mechanisms, CAMs with uniform acceleration and retardation, cycloidal motion, oscillating followers; Vibrations –Free and forced vibration of undamped and damped SDOF systems, Transmissibility Ratio, Vibration Isolation, Critical Speed of Shafts. Gears – Geometry of tooth profiles, Law of gearing, Involute profile, Interference, Helical, Spiral and Worm Gears, Gear Trains- Simple, compound and Epicyclic; Dynamic Analysis – Slider – crank mechanisms, turning moment computations, balancing of Revolving & Reciprocating masses, Gyroscopes –Effect of Gyroscopic couple on automobiles, ships and aircrafts, Governors.

10. Design of Machine Elements:

Design for static and dynamic loading; failure theories; fatigue strength and the S-N diagram; principles of the design of machine elements such as riveted, welded and bolted joints. Shafts, Spur gears, rolling and sliding contact bearings, Brakes and clutches, flywheels.

11. Manufacturing ,Industrial and Maintenance Engineering:

Metal casting-Metal forming, Metal Joining, Machining and machine tool operations, Limits, fits and tolerances, Metrology and inspection, computer Integrated manufacturing, FMS, Production planning and Control, Inventory control and operations research - CPM-PERT. Failure concepts and characteristics-Reliability, Failure analysis, Machine Vibration, Data acquisition, Fault Detection, Vibration Monitoring, Field Balancing of Rotors, Noise Monitoring, Wear and Debris Analysis, Signature Analysis, NDT Techniques in Condition Monitoring.

12. Mechatronics and Robotics:

Microprocessors and Microcontrollers: Architecture, programming, I/O, Computer interfacing, Programmable logic controller. Sensors and actuators, Piezoelectric accelerometer, Hall effect sensor, Optical Encoder, Resolver, Inductosyn, Pneumatic and Hydraulic actuators, stepper motor, Control Systems- Mathematical modeling of Physical systems, control signals, controllability and observability. Robotics, Robot Classification, Robot Specification, notation; Direct and Inverse Kinematics; Homogeneous Coordinates and Arm Equation of four Axis SCARA Robot

Electrical Engineering


1. Engineering Mathematics

Matrix theory, Eigen values & Eigen vectors, system of linear equations, Numerical methods for solution of non-linear algebraic equations and differential equations, integral calculus, partial derivatives, maxima and minima, Line, Surface and Volume Integrals. Fourier series, linear, nonlinear and partial differential equations, initial and boundary value problems, complex variables, Taylor’s and Laurent’s series, residue theorem, probability and statistics fundamentals, Sampling theorem, random variables, Normal and Poisson distributions, correlation and regression analysis.

2. Electrical Materials

Electrical Engineering Materials, crystal structures and defects, ceramic materials, insulating materials, magnetic materials – basics, properties and applications; ferrities, ferro-magnetic materials and components; basics of solid state physics, conductors; Photo-conductivity; Basics of Nano materials and Superconductors.

3. Electric Circuits and Fields

Circuit elements, network graph, KCL, KVL, Node and Mesh analysis, ideal current and voltage sources, Thevenin’s, Norton’s, Superposition and Maximum Power Transfer theorems, transient response of DC and AC networks, Sinusoidal steady state analysis, basic filter concepts, two-port networks, three phase circuits, Magnetically coupled circuits, Gauss Theorem, electric field and potential due to point, line, plane and spherical charge distributions, Ampere’s and Biot-Savart’s laws; inductance, dielectrics, capacitance; Maxwell’s equations.

4. Electrical and Electronic Measurements:

Principles of measurement, accuracy, precision and standards; Bridges and potentiometers; moving coil, moving iron, dynamometer and induction type instruments, measurement of voltage, current, power, energy and power factor, instrument transformers, digital voltmeters and multi-meters, phase, time and frequency measurement, Q-meters, oscilloscopes, potentiometric recorders, error analysis, Basics of sensors, Transducers, basics of data acquisition systems

5. Computer Fundamentals:

Number systems, Boolean algebra, arithmetic functions, Basic Architecture, Central Processing Unit, I/O and Memory Organisation; peripheral devices, data represenation and programming, basics of Operating system and networking, virtual memory, file systems; Elements of programming languages, typical examples.

6. Basic Electronics Engineering:

Basics of Semiconductor diodes and transistors and characteristics, Junction and field effect transistors (BJT, FET and MOSFETS), different types of transistor amplifiers, equivalent circuits and frequency response; oscillators and other circuits, feedback amplifiers.


1. Analog and Digital Electronics:

Operational amplifiers – characteristics and applications, combinational and sequential logic circuits, multiplexers, multi-vibrators, sample and hold circuits, A/D and D/A converters, basics of filter circuits and applications, simple active filters; Microprocessor basics- interfaces and applications, basics of linear integrated circuits; Analog communication basics, Modulation and demodulation, noise and bandwidth, transmitters and receivers, signal to noise ratio, digital communication basics, sampling, quantizing, coding, frequency and time domain multiplexing, power line carrier communication systems.

2. Systems and Signal Processing :

Representation of continuous and discrete-time signals, shifting and scaling operations, linear, time-invariant and causal systems, Fourier series representation of continuous periodic signals, sampling theorem, Fourier and Laplace transforms, Z transforms, Discrete Fourier transform, FFT, linear convolution, discrete cosine transform, FIR filter, IIR filter, bilinear transformation.

3. Control Systems:

Principles of feedback, transfer function, block diagrams and signal flow graphs, steady-state errors, transforms and their applications; Routh-hurwitz criterion, Nyquist techniques, Bode plots, root loci, lag, lead and lead-lag compensation, stability analysis, transient and frequency response analysis, state space model, state transition matrix, controllability and observability, linear state variable feedback, PID and industrial controllers.

4. Electrical Machines :

Single phase transformers, three phase transformers - connections, parallel operation, auto-transformer, energy conversion principles, DC machines - types, windings, generator characteristics, armature reaction and commutation, starting and speed control of motors, Induction motors - principles, types, performance characteristics, starting and speed control, Synchronous machines - performance, regulation, parallel operation of generators, motor starting, characteristics and applications, servo and stepper motors.

5. Power Systems :

Basic power generation concepts, steam, gas and water turbines, transmission line models and performance, cable performance, insulation, corona and radio interference, power factor correction, symmetrical components, fault analysis, principles of protection systems, basics of solid state relays and digital protection; Circuit breakers, Radial and ring-main distribution systems, Matrix representation of power systems, load flow analysis, voltage control and economic operation, System stability concepts, Swing curves and equal area criterion. HVDC transmission and FACTS concepts, Concepts of power system dynamics, distributed generation, solar and wind power, smart grid concepts, environmental implications, fundamentals of power economics.

6. Power Electronics and Drives :

Semiconductor power diodes, transistors, thyristors, triacs, GTOs, MOSFETs and IGBTs - static characteristics and principles of operation, triggering circuits, phase control rectifiers, bridge converters - fully controlled and half controlled, principles of choppers and inverters, basis concepts of adjustable speed dc and ac drives, DC-DC switched mode converters, DC-AC switched mode converters, resonant converters, high frequency inductors and transformers, power supplies.

Electronics & Telecommunication Engineering


1. Basic Electronics Engineering:

Basics of semiconductors; Diode/Transistor basics and characteristics; Diodes for different uses; Junction & Field Effect Transistors (BJTs, JFETs, MOSFETs); Transistor amplifiers of different types, oscillators and other circuits; Basics of Integrated Circuits (ICs); Bipolar, MOS and CMOS ICs; Basics of linear ICs, operational amplifiers and their applications-linear/non-linear; Optical sources/detectors; Basics of Opto electronics and its applications.

2. Basic Electrical Engineering:

DC circuits-Ohm’s & Kirchoff’s laws, mesh and nodal analysis, circuit theorems; Electro-magnetism, Faraday’s & Lenz’s laws, induced EMF and its uses; Single-phase AC circuits; Transformers, efficiency; Basics- DC machines, induction machines, and synchronous machines; Electrical power sources- basics: hydroelectric, thermal, nuclear, wind, solar; Basics of batteries and their uses.

3. Materials Science:

Electrical Engineering materials; Crystal structure & defects; Ceramic materials-structures, composites, processing and uses; Insulating laminates for electronics, structures, properties and uses; Magnetic materials, basics, classification, ferrites, ferro/para-magnetic materials and components; Nano materials-basics, preparation, purification, sintering, nano particles and uses; Nano-optical/magnetic/electronic materials and uses; Superconductivity, uses.

4. Electronic Measurements and Instrumentation:

Principles of measurement, accuracy, precision and standards; Analog and Digital systems for measurement, measuring instruments for different applications; Static/dynamic characteristics of measurement systems, errors, statistical analysis and curve fitting; Measurement systems for non-electrical quantities; Basics of telemetry; Different types of transducers and displays; Data acquisition system basics.

5. Network Theory:

Network graphs & matrices; Wye-Delta transformation; Linear constant coefficient differential equations- time domain analysis of RLC circuits; Solution of network equations using Laplace transforms- frequency domain analysis of RLC circuits; 2-port network parameters-driving point & transfer functions; State equations for networks; Steady state sinusoidal analysis.

6. Analog and Digital Circuits:

Small signal equivalent circuits of diodes, BJTS and FETs; Diode circuits for different uses; Biasing & stability of BJT & JFET amplifier circuits; Analysis/design of amplifier- single/multi-stage; Feedback& uses; Active filters, timers, multipliers, wave shaping, A/D-D/A converters; Boolean Algebra& uses; Logic gates, Digital IC families, Combinatorial/sequential circuits; Basics of multiplexers, counters/registers/ memories /microprocessors, design& applications.


1. Analog and Digital Communication Systems:

Random signals, noise, probability theory, information theory; Analog versus digital communication & applications: Systems- AM, FM, transmitters/receivers, theory/practice/ standards, SNR comparison; Digital communication basics: Sampling, quantizing, coding, PCM, DPCM, multiplexing-audio/video; Digital modulation: ASK, FSK, PSK; Multiple access: TDMA, FDMA, CDMA; Optical communication: fibre optics, theory, practice/standards.

2. Control Systems:

Classification of signals and systems; Application of signal and system theory; System realization; Transforms& their applications; Signal flow graphs, Routh-Hurwitz criteria, root loci, Nyquist/Bode plots; Feedback systems-open &close loop types, stability analysis, steady state, transient and frequency response analysis; Design of control systems, compensators, elements of lead/lag compensation, PID and industrial controllers.

3. Computer Organization and Architecture:

Basic architecture, CPU, I/O organisation, memory organisation, peripheral devices, trends; Hardware /software issues; Data representation& Programming; Operating systems-basics, processes, characteristics, applications; Memory management, virtual memory, file systems, protection & security; Data bases, different types, characteristics and design; Transactions and concurrency control; Elements of programming languages, typical examples.

4. Electro Magnetics:

Elements of vector calculus, Maxwell’s equations-basic concepts; Gauss’, Stokes’ theorems; Wave propagation through different media; Transmission Lines-different types, basics, Smith’s chart, impedance matching/transformation, S-parameters, pulse excitation, uses; Waveguides-basics, rectangular types, modes, cut-off frequency, dispersion, dielectric types; Antennas-radiation pattern, monopoles/dipoles, gain, arrays-active/passive, theory, uses.

5. Advanced Electronics Topics:

VLSI technology: Processing, lithography, interconnects, packaging, testing; VLSI design: Principles, MUX/ROM/PLA-based design, Moore & Mealy circuit design; Pipeline concepts & functions; Design for testability, examples; DSP: Discrete time signals/systems, uses; Digital filters: FIR/IIR types, design, speech/audio/radar signal processing uses; Microprocessors & microcontrollers, basics, interrupts, DMA, instruction sets, interfacing; Controllers & uses; Embedded systems.

6. Advanced Communication Topics:

Communication networks: Principles /practices /technologies /uses /OSI model/security; Basic packet multiplexed streams/scheduling; Cellular networks, types, analysis, protocols (TCP/TCPIP); Microwave & satellite communication: Terrestrial/space type LOS systems, block schematics link calculations, system design; Communication satellites, orbits, characteristics, systems, uses; Fibre-optic communication systems, block schematics, link calculations, system design.

Exam Schedule


Notification of Examination

25th September, 2019

Last date for submission of Application Form

15th October, 2019


(a) Candidates (excepting Female/SC/ST/PH who are exempted from payment of fee) are required to pay a fee of Rs. 200/‐ (Rupees Two Hundred only) either by depositing the money in any Branch of SBI by cash or by using Net banking facility of State Bank of India or by using Visa/Master Credit/Debit card.

(b) Candidates should note that payment of examination fee can be made only through the modes prescribed above. Payment of fee through any other mode is neither valid nor acceptable. Applications submitted without the prescribed fee/mode (unless remission of fee is claimed) shall be summarily rejected.


ESE 2020 Prelims Date

05th January, 2020

ESE 2020 Mains Date

28th June, 2020



GroupA Services/Posts

(i) Indian Railway Service of Engineers.

(ii) Indian Railway Stores Service (Civil Engineering Posts).

(iii) Central Engineering Service.

(iv) Indian Ordnance Factories Service AWM/JTS (Civil Engineering Post)

(v) Central Engineering Service (Roads), Gr ‘A’ (Civil Engineering Posts).

(vi) Central Water Engineering Service Gr ‘A’ (Civil Engineering Posts)

(vii) Survey of India Group ‘A’ Service.

(viii) AEE(Civil Engg Posts)in Border Roads Engineering Service Gr ‘A’.

(ix) AEE(Civil) of P&T Building Works Gr ‘A’.

(x) Indian Defence Service of Engineers

(xi) AEE(QS&C) in Military Engineer Service (MES)Surveyor Cadre.


GroupA/B Services/Posts

(i) Indian Railway Service of Mechanical Engineers.

(ii) Indian Railway Stores Service (Mechanical Engineering Posts).

(iii) Indian Ordnance Factories Service AWM/JTS (Mechanical Engineering Posts).

(iv) Central Electrical and Mechanical Engineering Service (Mechanical Engineering Posts).

(v) Geological Survey of India Engineering Service Gr ‘A’

(vi) Central Engineering Service (Roads), Gr ‘A’ (Mechanical Engineering Posts).

(vii) Central Water Engineering Service Gr ‘A’ (Mechanical Engineering Posts).

(viii) AEE(Mech Engg Posts) in Border Roads Engineering Service Gr ‘A’.

(ix) Indian Naval Armament Service

(x) Indian Defence Service of Engineers.

(xi) Central Power Engineering Service Gr ‘B’ (Mechanical Engineering Posts).


GroupA/B Services/Posts

(i) Indian Railway Service of Electrical Engineers.

(ii) Indian Railway Stores Service (Electrical Engineering Posts).

(iii) Central Electrical and Mechanical Engineering Service (Electrical Engineering Posts).

(iv) Indian Ordnance Factories Service AWM/JTS (Electrical Engineering Posts).

(v) Indian Inspection Service (Asstt. Dir. Grade I).

(vi) Indian Supply Service Gr ‘A’.

(vii) AEE(Electrical) of P&T Building Works Gr ‘A’.

(viii) Indian Naval Armament Service.

(ix) Indian Defence Service of Engineers

(x) Central Power Engineering Service Gr ‘B’ (Electrical Engineering Posts).



Preparation strategy for UPSC Engineering Services Examination

IES is among the most prestigious and coveted career options that are available for engineers encompassing private, public and government sectors. Just like the Civil Services, the candidates recruited for the IES are highly honored by the government and the society. 
Since there are many opportunities for engineers in the public sector like Indian Railways, Central Engineering, Military Engineering, Telecommunications, Central Water Services and many other departments, the IES is a highly desired job where candidates get to play an important role in the development of the country.

The keys to success in the IES or any other exam will always be hard work, relentless efforts and perseverance. However, a smart approach involving systematic planning is also crucial to achieve targets. A thorough knowledge of the subject including clarity of basic concepts along with awareness about current affairs, general knowledge add to the advantages of hard work. A smart and mature persona is also a prerequisite for successfully cracking this exam. 

You can use these tips to get a fair idea of these exams and develop your own personal strategy:

You must understand and acquaint yourself with the latest pattern and syllabus of the examination. The previous year's question papers can be a great help. You can screen them thoroughly to identify the repeat topics and questions and prepare accordingly. 

Use reference books to understand concepts but prefer to understand one topic from one good book to avoid confusion and waste of time. However, you can use different books for different topics.

 Time management is a very crucial factor during preparation and even writing this exam. One must chalk out a proper strategy and time table. Each subject from the technical section must be devoted at least 3 hours daily to get best results. English and General Studies should also be given 1 hour each so that you can get a cutting edge in exam. 

To avoid boredom and maintain enthusiasm distribute the subjects well in your time table for studying. You can alternate between General Ability and Technical sections to make studying enjoyable. 

You must segregate short-term and long term study goals, and work accordingly to succeed.

Short notes are very helpful especially in technical subjects. Make short notes of important topics and also a list of formulae and revise them daily. 

Practice of questions helps to assess your understanding and level of concepts. Practice as many as possible from books and previous question papers.

Since time is a crucial factor while attempting the exam candidates can time themselves while practicing questions. Ensure to complete the tasks within the stipulated time.

Candidates can also practice questions with the help of OMR sheets so that they get acclimatized to using them during the exam. 
For English, you can learn 20 new words daily from previous years question papers or other sources.

You can also solve 10 to 15 questions of English daily, based on rearranging sentences and finding errors.

Reading the newspaper, watching the news, surfing the net will help to prepare for the general ability exam. Knowledge of Current Affairs of 45 days prior to the exam will help to sail through this exam.
Daily practice of at least of 5 questions from the previous year papers of conventional exam will enhance writing skills and presentation.

Practice of mock tests that include all sections of the exam within a limited time frame will help you to sail through and succeed in these exams.

Time plays a very crucial role during all exams including the ESE. So, it is a must that you optimally utilize the allotted time.

There are 120 questions in Objective Paper I, evenly based on General Studies and English. Since Comprehension and questions based on rearrangement of sentences are time consuming, candidates can solve those after completing the rest of the exam.

Ensure that you read the Comprehension thoroughly before attempting the questions. This will give you a better idea for answering correctly.

 Attempt the questions you find easy before moving on to the difficult ones.

 echnical theory questions are best attempted before the numerical since you may take long to attempt numerical which also carry negative marking, so a well attempted theory gives you stronger chance of scoring well and covering up for negative marks. 

Remember to write the formula in the numerical problems, along with S.I units of quantities involved and also specify the answer.

There are two conventional papers on the third day. Attempt the easy questions first after reading the paper thoroughly and keep the difficult ones for the end.

Make sure the presentation of your answer sheet is neat, systematic and well organized with properly labeled diagrams if required. An orderly answer sheet with exact expression within proper word limit is credited for especially in the conventional papers.

Consistency, Perseverance and self motivation are the key ingredients of success.

Enhance your memory power and efficiency by indulging in recreational activities, to keep your mind healthy and rejuvenated. 

Keep the documents related to examination such as hall ticket, acknowledgment of application, application number and other details safely to avoid any hassles.

The last day before the exam must be spent in relaxing and revising only important topics and notes. You must also sleep for at least 6 hours to wake up fresh and rejuvenated for the exam. 

Remember to carry sharpened pencils, pens, eraser and your hall ticket on the day of the exam. 

Make sure that you reach the exam centre well before time and avoid studying during traveling.


Preparation for the ESE requires both, clarity of concepts as well as problem solving skills, since the written exam has objective and subjective sections. A few key points will have you sailing through.

Begin with awareness of exam pattern, percentage of technical questions & non-technical ones, weightage of each section to streamline your studying strategy. Use Previous year question papers as guide to make smart decisions regarding your study plan. 

Use Reference books for understanding theory, concepts, derivations and equations etc. and make your basics strong.

You can practice previous year question papers to analyze your weak areas. Identify the weak topics and revise them thoroughly. Time yourself as you solve the papers to get an idea of your speed so that you can focus on that too.

The General Ability section carries 200 marks and is important even for the Personal interview. Keep your General Knowledge updated for this section through news papers, news channels or surfing websites. 

Writing the Exam

Smart writing skills, good presentation, proper explanations, theoretical reasoning, derivations, related equations and diagrams will help you cover the subjective section.

Short Cut Techniques: Solve numerical using short techniques rather than traditional methods to save time.
Beware of marks per question, negative marking and exam duration while attempting the paper.

Personal Interview Your all round personality is the focal point of personal interviews. A Positive attitude, Smart body language, Proper communication and Knowledge about current affairs reflect a great Persona. Along with this Sound technical knowledge can create a great impression in personal interviews. You must prepare to answer queries about your strong and weak traits.

ESE Reference Books

S.No Subject / Book Name Author Name
1 Strength of Materials /Mechanics of
Gere & Goodno, L. Singer
2 Theory of Structures/ Analysis of Structure

L.S. Negi & Jangit, Gupta & Pandit,
C.S. Reddy

3 Construction Planning &Management
(ii)Engineering Economy & unsolved
Problems on PERT-CPM
(iii) Equipment

B.C. Punamia

U.K. Shrivastav

Robert Peurifoy

4 Soil Mechanics & Foundation Engineering. R.F.Craig , Muni Budhu
5 Fluid Mechanics and Fluid Machines

Modi & Seth, R. K. Bansal, Cengel and
Cimbala, K.Subramanyam, Jagdish Lal.

6 Environmental Engineering

G.O.I Manual , S.K. Garg (Part-I & II),
Peavy and R owe, Metcalf & Eddy

7 Highway Engineering Khanna & Justo, Kadiyali
8 Railway Engineering

Saxena & Arora

9 Airport Engineering

Saxena & Arora

10 Docks & Harbors


11 Building Materials Rangwala, M.L. Gambhir
12 R.C.C. Design

Pillai and Menon, A.K. jain, H.J.Shah

I.S. Code-456---2000

13 Steel Design

Arya & Ajmani, L.S. Negi,

I.S. Code-800

14 Plastic Analysis

Manicka Selvam

S.No Subject / Book Name Author Name
1 Engg. Thermodynamics P.K Nag , Cengel & Boles
2 Strength of Materials

Gere & Timoshenko

Sadhu Singh

E.J Hern

3 Industrial Engg.

O P Khanna , Ravi Shankar

Buffa & Sarin

4 Production Engg.

Kalpkjian Schmid

Amitabh Ghosh

AK Malik

5 Material Science

WD Callister

IP Singh ,V Raghvan

6 Machine Design


V.B Bhandari

7 Mechanical Vibration Grover
8 Theory of Machines

RS Khurmi , S.S Rattan

Malik & Ghosh

9 Fluid Machinery

Jagdish Lal


10 Refrigeration & Air Conditioning

CP Arora


11 Heat Mass And Transfer D.S.Kumar
12 Compressible Flow S.M.Yahya
13 Fluid Mechanics

Modi & Seth


14 Gas Turbine & Propulsive Systems

V Ganeshan

P.K Nag

15 I.C.Engine

Sharma Mathur,

V. Ganeshan

16 Operations Research

Taha , S.D Sharma

Kanti Swarup

S.No. Subject/Book Name Author Name
1 Electrical Materials

A.J. Dekker

S.P. Seth

2 Electrical Circuits

Van Valkenberg

D. Roy choudhary

A.K. Chakraborty

Schaum series

3 Electro Magnetic field

W.H Hayt

Mathewd N.O. Sadikku

K.D. Prasad

Schaum Series


Electrical and Electronic Measurements

A.K. Sawhney

Helfric & Cooper

J.B. Gupta

David A. Bell

H.S. Kalsi
5 Computer Fundamentals

Abraham silberschatz, Galvin

William stallings

Computer Networking



William stallings

Digital logic

M. Morris Mano


Computer Organization and architecture

Carl hamacher

William stallings

Morris Mano

Programming & data structures

Yashavant Kenetkar (Understanding pointers in C)


D. Ritchie

10 Basic Electronic Engineering

S.M. sze.

Streetman & Banerjee

Millman & Halkias

S.No. Subject/Book Name Author Name
1 Analog Electronics Milman & Halkias
Bolysted & Nashelsky
Sedra & smith
2 Digital Electronics Milman & Halkias
Bolysted & Nashelsky
Sedra & smith
3 Electrical Materials Morris Mano
R.P. Jain
4 Microprocessor R.S. Gaonkar
B. Ram
D.V. Hall
5 Systems & signal processing Oppenheim wilsky
Simon Haykin
P. Ramakrishna Rao
6 Control Systems Nagrath & Gopal
B.C. Kuo
K. Ogata
B.S. Manke
Schaum series
7 Electical Machines I.J. Nagrath & D.P. Kothari
P.S . Bimbra
Fitzrald & kingsley
8 Power Systems I.J . Nagrath & D.P. Kothari
C.L. Wadhowa
Badri Ram-Power system Protection & switchgear
Williom D Stevenson Jr.
9 Power Electronics & Drives P.S. Bhimbra
M.H. Rashid
S.No. Subject/Book Name Author Name
1 Basic Electronics Engineering Millman & Halkias
Boylested & Nashelsky
Sedra & Smith
Streetman & Banerjee
S.M. Sze
2 Basic Electrical Engineering • B.L. Thareja
3 Material Science A.J. Dekker
S.P. Seth
4 Electronic Measurements & Instrumentation A.K. Sawhney
Helfric & Cooper
J.B. Gupta
David A.Bell
H.S. Kalsi
5 Network Theory Van Valkonberg
D.Roy Choudhary
A.K. Chakraborty
Schaum Series
6 (a) Analog Electronics Milman & Halkias Bolysted & Nashelsky
Sedra & Smith
Behzad Razavi –Introduct to Micro-electronics
7 (b) Digital Electronics Morris Mano R.P. Jain
8 (c) Microproccesors R.S. Gaonkar B. Ram
D.V. Hall
S.No. Subject/Book Name Author Name
1 Analog & Digital communication Simon Haykin B.P. Lathi
Taub & Schilling
Singh & Sapre
P. Ramakrishna Rao-Analog communication
P.Ramakrishna Rao-Digital communication
H.P. Hsu-Schaum Series
2 Control Systems Nagrath & Gopal
B.C. Kuo
K. Ogata
B.S. Manke
Schaum series
3 Computer Organization & Architect To be taken from computer facul
4 Electro-Magnetics W.H. Hayt
Mathew N.O. Sadiku
K.D. Prasad
Schaum Series
Samuel Liao-for waveguide
Pozar-for waveguides
Harish Sachdananda-For antenna wave propogat
Kennedy-For Antenna
5 Advanced Electronics Topic D.V. Hall
SM Sze-VLSI Technology
Plummer-Silicon VLSI Technology
Muhmmad N. Mazidi-Microcontrollers.
Proakis & Manolokis-DSP
Ramesh Babu C Durai-DSP
6 Advanced Communication Topics Forouzan-Communication Network
Carl Hamacher
John M Senior-Optical Fiber Communication
Pratt & Boastian-Satellite Communication

ESE Topper's Testimonials

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AIR 01, ESE 2018

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AIR 02, ESE 2018

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AIR 1, ESE 2017


To apply for Engineering Services Examination (ESE), a candidate should hold a Bachelor’s degree in the field of engineering from a recognized University. The four core engineering branches whose students write ESE are Civil, Mechanical, Electrical and Electronics Engineering. As far as age limit is concerned, the candidate who wishes to write ESE must have attained the age of 21 years and must not have attained the age of 30 years as mentioned in that particular year’s ESE notification released by UPSC.

The online registration window for ESE opens in the month of September every year at the official website of UPSC by clicking on the link that says ‘Apply Online’.

There is no difference between ESE and IES. UPSC conducts Engineering Services Examination (ESE), and the engineers recruited as class ‘A’ officers are commonly known as IES (Indian Engineering Service) officers.

A candidate who wishes to write ESE must have attained the age of 21 years and must not have attained the age of 30 years on the dates as mentioned in that particular year’s UPSC ESE notification. The maximum age limit is relaxed for candidates from different categories.

The Engineering Services Examination (ESE) is conducted in three stages – ESE Prelims, ESE Main, and finally Personality Test. Both the Prelims and Main stage papers are offline i.e. pen and paper-based tests.

In ESE Prelims papers calculators are not allowed. However, candidates are allowed to use calculator while writing ESE Main papers.

Negative marking is there in ESE Prelims stage papers only. The questions asked in ESE Prelims papers are objective type. In ESE Prelims papers, there are four options for the answers to every question. For each question for which a wrong answer has been given by the candidate, one‐third (1/3rd) of the marks assigned to that question will be deducted as penalty.

If a candidate gives more than one answer, it will be treated as a wrong answer even if one of the given answers happen to be correct, and in this case also negative marking is applicable.

If a question is not attempted by the candidate then there would not be any penalty.

In ESE Prelims stage, a candidate has to write two objective papers – Paper-I and Paper-II. The Paper-I is of General Studies & Engineering Aptitude, and the Paper-II is of Engineering Discipline. In ESE Main stage too, a candidate has to write two papers – Paper-I and Paper-II. Here both the papers are conventional type papers of Engineering Discipline.

ESE consists of three stages – ESE Prelims, ESE Main, and Personality Test. All the three stages take almost the entire year. Whereas GATE is a one-day exam of three hours. Secondly, the syllabus of ESE is very vast, completing almost the entire engineering syllabus. GATE syllabus includes only those subjects that are important from higher studies point of view.

Also, the objective of GATE is to test a candidate’s conceptual clarity, problem-solving skills and in-depth knowledge, ESE on other hand is more of a speed test and it tests a candidate’s ability to cover the entire syllabus of General Studies and Engineering.

The syllabus of GATE and ESE is almost similar. The only difference between these two exams is how a candidate approaches the exams. To crack GATE, which includes objective type questions, a candidate should have perfect conceptual clarity and understanding of subjects, and should know short tricks to deduce the correct answer from the given options. In the case of ESE, which includes subjective type questions in the Mains stage, a candidate should have good answer writing skills as well as speed and accuracy in solving numerical problems.

To begin preparation for ESE, one should first go through the complete UPSC ESE notification of that particular year to understand the exam, know about the number of vacancies, go through the syllabus, check the physical and medical requirements for various posts, and also go through other important details. Evaluate how much time you have in your hands to prepare for the exam, do a self-analysis of your strengths and weaknesses by browsing through previous years question papers, etc. Once done, decide whether you need ESE coaching, research about the best ESE coaching, watch the videos of previous years ESE toppers, take the ESE test series, plan ESE preparation strategy, choose the best ESE preparation books, and then proceed accordingly.

The ESE Online Test Series includes mock tests that match the level and orientation of the ESE Prelims and ESE Main papers. ESE test series consists of a good number of topic-wise tests, subject-wise tests, mixed subject tests, and full-length tests to equip ESE aspirants in the most complete manner to accept, attempt and challenge the UPSC Engineering Services Examination. By writing full-length tests, ESE aspirants get an opportunity to write ESE before the real ESE.

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