Reference Books for IES
  IES 2012 Interview question
What is IES ?
Indian Engineering Services 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 Indian Engineering Services. 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:

a. Civil Engineering
b. Mechanical Engineering
c. Electrical engineering
d. Electronics & Telecommunication Engineering
How to Prepare for IES
  • ESE written exam consists of both objective and conventional type questions hence theory, conceptual knowledge and problem solving techniques are equally important.
  • Good writing skills, good presentation, subjective theory, explanations, derivations, diagrams and equations will fetch you good marks in conventional or subjective paper.
  • Be aware of exam pattern like how many technical & non-technical questions are asked, negative marks weightage, exam duration and marks per question.
  • Always make a habit of referring previous year question papers.
  • Adopt Reference books for derivations, equations, conceptual thinking, theory etc.
  • Short Cut Techniques: Traditional methods to solve numerical problems is time taking process, try to adopt short cut techniques to save the time.
  • Reading news paper, good grip on English language and current affairs will help in scoring more marks in General Ability paper carrying 200 marks.
  • Never neglect General Ability part as this section is scoring and also plays an important role in personal interview.
  • Practice previous year question papers and analyze in which topics you are weak and concentrate more on those topics. Always try to solve the papers in given time to obtain the idea that how many questions you are able to solve in given time limits.
  • Deep knowledge of the subject, strong basics, clear concepts helps in better understanding of the subjects and proved to be instrumental in getting good scores.
  • Personal Interview : Sound technical knowledge, positive attitude, body language, Good communication skills, Hobbies and General Awareness Knowledge plays an important role to clear personal interviews.
IES Exam Pattern
General Ability Test
(Part A: General English)
(Part B: General Studies)
2 hours 200
Objective Paper I2 hours200
Objective Paper II2 hours200
Conventional Paper I 3 hours 200
Conventional Paper II3 hours200
Personality Test200
IES Syllabus
GENERAL ABILITY TEST (Common for all Streams EC, ME, EE, CE)
Part A: General English: The question paper in General English will be designed to test the candidate's understanding of English and workmanlike use of words.
Part B: General Studies: The paper in General Studies will include knowledge of current events and of such matters as of everyday observation and experience in their scientific aspects as may be expected of an educated person. The paper will also include questions on History of India and Geography of a nature which candidates should be able to answer without special study.
1. Materials and Components:
Structure and properties of Electrical Engineering materials; Conductors, Semiconductors and Insulators, magnetic, Ferroelectric, Piezoelectric, Ceramic, Optical and Super-conducting materials. Passive components and characteristics Resistors, Capacitors and Inductors; Ferrites, Quartz crystal Ceramic resonators, Electromagnetic and Electromechanical components.

2. Physical Electronics, Electron Devices and ICs:
Electrons and holes in semiconductors, Carrier Statistics, Mechanism of current flow in a semiconductor, Hall effect; Junction theory; Different types of diodes and their characteristics; Bipolar Junction transistor; Field effect transistors; Power switching devices like SCRs, GTOs, power MOSFETS; Basics of ICs - bipolar, MOS and CMOS types; basic of Opto Electronics.

3. Signals and Systems
Classification of signals and systems: System modelling in terms of differential and difference equations; State variable representation; Fourier series; Fourier transforms and their application to system analysis; Laplace transforms and their application to system analysis; Convolution and superposition integrals and their applications; Z-transforms and their applications to the analysis and characterisation of discrete time systems; Random signals and probability, Correlation functions; Spectral density; Response of linear system to random inputs.

4. Network theory
Network analysis techniques; Network theorems, transient response, steady state sinusoidal response; Network graphs and their applications in network analysis; Tellegen's theorem. Two port networks; Z, Y, h and transmission parameters. Combination of two ports, analysis of common two ports. Network functions : parts of network functions, obtaining a network function from a given part. Transmission criteria : delay and rise time, Elmore's and other definitions effect of cascading. Elements of network synthesis.

5. Electromagnetic Theory
Analysis of electrostatic and magnetostatic fields; Laplace's and Poisson's equations; Boundary value problems and their solutions; Maxwell's equations; application to wave propagation in bounded and unbounded media; Transmission lines : basic theory, standing waves, matching applications, microstrip lines; Basics of wave guides and resonators; Elements of antenna theory.

6. Electronic Measurements and instrumentation
Basic concepts, standards and error analysis; Measurements of basic electrical quantities and parameters; Electronic measuring instruments and their principles of working : analog and digital, comparison, characteristics, application. Transducers; Electronic measurements of non electrical quantities like temperature, pressure, humidity etc; basics of telemetry for industrial use.

1. Analog Electronic Circuits :
Transistor biasing and stabilization. Small signal analysis. Power amplifiers. Frequency response. Wide banding techniques. Feedback amplifiers. Tuned amplifiers. Oscillators. Rectifiers and power supplies. Op Amp, PLL, other linear integrated circuits and applications. Pulse shaping circuits and waveform generators.

2. Digital Electronic Circuits :
Transistor as a switching element; Boolean algebra, simplification of Boolean functions, Karnaguh map and applications; IC Logic gates and their characteristics; IC logic families : DTL, TTL, ECL, NMOS, PMOS and CMOS gates and their comparison; Combinational logic Circuits; Half adder, Full adder; Digital comparator; Multiplexer Demulti-plexer; ROM an their applications. Flip flops. R-S, J-K, D and T flip-flops; Different types of counters and registers Waveform generators. A/D and D/A converters. Semiconductor memories.

3. Control Systems :
Transient and steady state response of control systems; Effect of feedback on stability and sensitivity; Root locus techniques; Frequency response analysis. Concepts of gain and phase margins: Constant-M and Constant-N Nichol's Chart; Approximation of transient response from Constant-N Nichol's Chart; Approximation of transient response from closed loop frequency response; Design of Control Systems, Compensators; Industrial controllers.

4. Communication Systems :
Basic information theory; Modulation and detection in analogue and digital systems; Sampling and data reconstructions; Quantization & coding; Time division and frequency division multiplexing; Equalization; Optical Communication : in free space & fiber optic; Propagation of signals at HF, VHF, UHF and microwave frequency; Satellite Communication.

5. Microwave Engineering :
Microwave Tubes and solid state devices, Microwave generation and amplifiers, Waveguides and other Microwave Components and Circuits, Microstrip circuits, Microwave Antennas, Microwave Measurements, Masers, lasers; Microwave propagation. Microwave Communication Systems terrestrial and Satellite based.

6. Computer Engineering :
Number Systems. Data representation; Programming; Elements of a high level programming language PASCAL/C; Use of basic data structures; Fundamentals of computer architecture; Processor design; Control unit design; Memory organisation, I/o System Organisation. Microprocessors : Architecture and instruction set of Microprocessors 8085 and 8086, Assembly language Programming. Microprocessor Based system design : typical examples. Personal computers and their typical uses.

1. EM Theory
Electric and magnetic fields. Gauss's Law and Amperes Law. Fields in dielectrics, conductors and magnetic materials. Maxwell's equations. Time varying fields. Plane-Wave propagating in dielectric and conducting media. Transmission lines.

2. Electrical Materials
Band Theory, Conductors, Semi-conductors and Insulators. Super-conductivity. Insulators for electrical and electronic applications. Magnetic materials. Ferro and ferri magnetism. Ceramics, Properties and applications. Hall effect and its applications. Special semi conductors.

3. Electrical Circuits
Circuits elements. Kirchoff's Laws. Mesh and nodal analysis. Network Theorems and applications. Natural response and forced response. Transient response and steady state response for arbitrary inputs. Properties of networks in terms of poles and zeros. Transfer function. Resonant circuits. Threephase circuits. Two-port networks. Elements of two-element network synthesis.

4. Measurements and Instrumentation
Units and Standards. Error analysis, measurement of current, Voltage, power, Power-factor and energy. Indicating instruments. Measurement of resistance, inductance, Capacitance and frequency. Bridge measurements. Electronic measuring instruments. Digital Voltmeter and frequency counter. Transducers and their applications to the measurement of non-electrical quantities like temperature, pressure, flow-rate displacement, acceleration, noise level etc. Data acquisition systems. A/D and D/A converters.

Mathematical modelling of physical systems. Block diagrams and signal flow graphs and their reduction. Time domain and frequency domain analysis of linear dynamical system. Errors for different type of inputs and stability criteria for feedback systems. Stability analysis using Routh-Hurwitz array, Nyquist plot and Bode plot. Root locus and Nicols chart and the estimation of gain and phase margin. Basic concepts of compensator design. State variable matrix and its use in system modelling and design. Sampled data system and performance of such a system with the samples in the error channel. Stability of sampled data system. Elements of non-linear control analysis. Control system components, electromechanical, hydraulic, pneumatic components.

1. Electrical Machines and Power Transformers
Magnetic Circuits - Analysis and Design of Power transformers. Construction and testing. Equivalent circuits. Losses and efficiency. Regulation. Auto-transformer, 3-phase transformer. Parallel operation.
Basic concepts in rotating machines. EMF, torque, basic machine types. Construction and operation, leakage losses and efficiency.
B.C. Machines. Construction, Excitation methods. Circuit models. Armature reaction and commutation. Characteristics and performance analysis. Generators and motors. Starting and speed control. Testing, Losses and efficiency.
Synchronous Machines. Construction. Circuit model. Operating characteristics and performance analysis. Synchronous reactance. Efficiency. Voltage regulation. Salient-pole machine, Parallel operation. Hunting. Short circuit transients.
Induction Machines. Construction. Principle of operation. Rotating fields. Characteristics and performance analysis. Determination of circuit model. Circle diagram. Starting and speed control.
Fractional KW motors. Single-phase synchronous and induction motors.

2. Power systems
Types of Power Stations, Hydro, Thermal and Nuclear Stations. Pumped storage plants. Economics and operating factors.
Power transmission lines. Modeling and performance characteristics. Voltage control. Load flow studies. Optimal power system operation. Load frequency control. Symmetrical short circuit analysis. ZBus formulation. Symmetrical Components. Per Unit representation. Fault analysis. Transient and steady-state stability of power systems. Equal area criterion. Power system Transients. Power system Protection Circuit breakers. Relays. HVDC transmission.

Semiconductor device physics, PN junctions and transistors, circuit models and parameters, FET, Zener, tunnel, Schottky, photo diodes and their applications, rectifier circuits, voltage regulators and multipliers, switching behavior of diodes and transistors.
Small signal amplifiers, biasing circuits, frequency response and improvement, multistage amplifiers and feed-back amplifiers, D.C. amplifiers, Oscillators. Large signal amplifiers, coupling methods, push pull amplifiers, operational amplifiers, wave shaping circuits. Multivibrators and flip-flops and their applications. Digital logic gate families, universal gates-combination circuits for arithmetic and logic operational, sequential logic circuits. Counters, registers, RAM and ROMs.

Microprocessor architecture-Instruction set and simple assembly language programming. Interfacing for memory and I/O. Applications of Micro-processors in power system.

Types of modulation; AM, FM and PM. Demodulators. Noise and bandwidth considerations. Digital communication systems. Pulse code modulation and demodulation. Elements of sound and vision broadcasting. Carrier communication. Frequency division and time division multiplexing, Telemetry system in power engineering.

Power Semiconductor devices. Thyristor. Power transistor, GTOs and MOSFETS. Characteristics and operation. AC to DC Converters; 1-phase and 3-phase DC to DC Converters; AC regulators. Thyristor controlled reactors; switched capacitor networks. Inverters; single-phase and 3-phase. Pulse width modulation. Sinusoidal modulation with uniform sampling. Switched mode power supplies.

1. Thermodynamics, Cycles and IC Engines, Basic concepts, Open and Closed systems. Heat and work. Zeroth, First and Second Law, Application to non-Flow and Flow processes. Entropy, Availability, Irreversibility and Tds relations. Claperyron and real gas equations, Properties of ideal gases and vapours. Standard vapour, Gas power and Refrigeration cycles. Two stage compressor. C-I and S.I. Engines. Pre-ignition, Detonation and Diesel-knock, Fuel injection and Carburation, Supercharging. Turbo-prop and Rocket engines, Engine Cooling, Emission & Control, Flue gas analysis, Measurement of Calorific values. Conventional and Nuclear fuels, Elements of Nuclear power production.

2. Heat Transfer and Refrigeration and Airconditioning. Modes of heat transfer. One dimensional steady and unsteady conduction. Composite slab and Equivalent Resistance. Heat dissipation from extended surfaces, Heat exchangers, Overall heat transfer coefficient, Empirical correlations for heat transfer in laminar and turbulent flows and for free and forced Convection, Thermal boundary layer over a flat plate. Fundamentals of diffusive and connective mass transfer, Black body and basic concepts in Radiation, Enclosure theory, Shape factor, Net work analysis. Heat pump and Refrigeration cycles and systems, Refrigerants. Condensers, Evaporates and Expansion devices, Psychrometry, Charts and application to air conditioning, Sensible heating and cooling, Effective temperature, comfort indices, Load calculations, Solar refrigeration, controls, Duct design.

3. Fluid Mechanics.
Properties and classification of fluids, Manometry, forces on immersed surfaces, Center of pressure, Buoyancy, Elements of stability of floating bodies. Kinematics and Dynamics. Irrotational and incompressible. Inviscid flow. Velocity potential, Pressure field and Forces on immersed bodies. Bernoulli's equation, Fully developed flow through pipes, Pressure drop calculations, Measurement of flow rate and Pressure drop. Elements of boundary layer theory, Integral approach, Laminar and tubulent flows, Separations. Flow over weirs and notches. Open channel flow, Hydraulic jump. Dimensionless numbers, Dimensional analysis, Similitude and modelling. One-dimensional isentropic flow, Normal shock wave, Flow through convergent - divergent ducts, Oblique shock-wave, Rayleigh and Fanno lines.

4. Fluid Machinery and Steam Generators.
Performance, Operation and control of hydraulic Pump and impulse and reaction Turbines, Specific speed, Classification. Energy transfer, Coupling, Power transmission, Steam generators Fire-tube and water-tube boilers. Flow of steam through Nozzles and Diffusers, Wetness and condensation. Various types of steam and gas Turbines, Velocity diagrams. Partial admission. Reciprocating, Centrifugal and axial flow Compressors, Multistage compression, role of Mach Number, Reheat, Regeneration, Efficiency, Governance.

Kinematic and dynamic analysis of planer mechanisms. Cams. Gears and gear trains. Flywheels. Governors. Balancing of rigid rotors and field balancing. Balancing of single and multicylinder engines, Linear vibration analysis of mechanical systems. Critical speeds and whirling of shafts Automatic controls.

Design of Joints : cotters, keys, splines, welded joints, threaded fasteners, joints formed by interference fits. Design of friction drives : couplings and clutches, belt and chain drives, power screws. Design of Power transmission systems : gears and gear drives shaft and axle, wire ropes. Design of bearings : hydrodynamics bearings and rolling element bearings.

Stress and strain in two dimensions, Principal stresses and strains, Mohr's construction, linear elastic materials, isotropy and anisotropy, stress-strain relations, uniaxial loading, thermal stresses. Beams : Bending moment and shear force diagram, bending stresses and deflection of beams. Shear stress distribution. Torsion of shafts, helical springs. Combined stresses, thick-and thin-walled pressure vessels. Struts and columns. Strain energy concepts and theories of failure.

Basic concepts on structure of solids. Crystalline maferials. Detects in crystalline materials. Alloys and binary phase diagrams. Structure and properties of common engineering materials. Heat treatment of steels. Plastics, Ceramics and composite materials. Common applications of various materials.

Metal Forming : Basic Principles of forging, drawing and extrusion; High energy rate forming; Powder metallurgy. Metal Casting : Die casting, investment casting, Shall Moulding, Centrifugal Casting, Gating & Riser design; melting furnaces. Fabrication Processes : Principles of Gas, Arc, Shielded arc Welding; Advanced Welding Processes, Weldability: Metallurgy of Welding. Metal Cutting : Turning, Methods of Screw Production, Drilling, Boring, Milling, Gear Manufacturing, Production of flat surfaces, Grinding & Finishing Processes. Computer Controlled Manufacturing Systems-CNC, DNC, FMS, Automation and Robotics. Cutting Tools Materials, Tool Geometry, Mechanism of Tool Wear, Tool Life & Machinability; Measurement of cutting forces. Economics of Machining. Unconventional Machining Processes. Jigs and Fixtures. Fits and tolerances, Measurement of surface texture, Comparators Alignment tests and reconditioning of Machine Tools.

Production Planning and Control : Forecasting - Moving average, exponential smoothing, Operations, scheduling; assembly line balancing, Product development, Break-even analysis, Capacity planning, PERT and CPM. Control Operations : Inventory control ABC analysis, EOQ model, Materials requirement planning. Job design, Job standards, Work measurement, Quality Management - Quality analysis and control. Operations Research : Linear Programming - Graphical and Simplex methods, Transportation and assignment models. Single server queueing model. Value Engineering : Value analysis for cost/value.

Computer Organisation, Flow charting, Features of Common computer Languages - FORTRAN, d Base III, Lotus 1-2-3, C and elementary Programming.

Civil Engineering Paper - I
Timber : Different types and species of structural timber, density-moisture relationship, strength in different directions, defects, influence of defects on permissible stress, preservation, dry and wet rots, codal provisions for design, Plywood. Bricks: Types, Indian Standard classification, absorption, saturation factor, strength in masonry, influence of mortar strength on masonry strength. Cement: Compounds of, different types, setting times, strength. Cement Mortar: Ingredients, proportions, water demand, mortars for plastering and masonry. Concrete: Importance of W/C Ratio, Strength, ingredients including admixtures, workability, testing for strength, elasticity, non-destructive testing, mix design methods.

Elastic constants, stress, plane stress, Mohr's circle of stress, strains, plane strain, Mohr's circle of strain, combined stress; Elastic theories of failure; Simple bending, shear; Torsion of circular and rectangular sections and simple members.

Analysis of determinate structures - different methods including graphical methods. Analysis of indeterminate skeletal frames - moment distribution, slope-deflection, stiffness and force methods, energy methods, Muller-Breslau principle and application. Plastic analysis of indeterminate beams and simple frames - shape factors.

Principles of working stress method. Design of connections, simple members, Built-up sections and frames, Design of Industrial roofs. Principles of ultimate load design. Design of simple members and frames.

Limit state design for bending, shear, axial compression and combined forces. Codal provisions for slabs, beams, walls and footings. Working stress method of design of R.C. members. Principles of pre stressed concrete design, materials, and methods of pre stressing, losses. Design of simple members and determinate structures. Introductions to pre stressing of indeterminate structures. Design of brick masonry as per I.S. Codes.

Concreting Equipment:
Weight Batcher, Mixer, vibrator, batching plant, concrete pump. Cranes, hoists, lifting equipment.
Earthwork Equipment:
Power shovel, hoe, dozer, dumper, trailers and tractor, rollers, sheep foot rollers, pumps.
Construction, Planning and Management :
Bar chart, linked bar chart, work-break down structures, Activity - on - arrow diagrams. Critical path, probabilistic activity durations; Event-based networks. PERT network: Time-cost study, crashing; Resource allocation.
Fluid Properties, Pressure, Thrust, Buoyancy; Flow Kinematics; Integration of flow equations; Flow measurement; Relative motion; Moment of momentum; Viscosity, Boundary layer and Control, Drag, Lift; dimensional Analysis, Modelling; Cavitation; Flow oscillations; Momentum and Energy principles in Open channel flow, Flow controls, Hydraulic jump, Flow sections and properties; Normal flow, Gradually varied flow; Surges; Flow development and losses in pipe flows, Measurements; Siphons; Surges and Water hammer; Delivery of Power Pipe networks.

Centrifugal pumps, types, performance parameters, scaling, pumps in parallel; Reciprocating pumps, air vessels, performance parameters; Hydraulic ram; Hydraulic turbines, types, performance parameters, controls, choice; Power house, classification and layout, storage, pondage, control of supply.

2. (a) HYDROLOGY :
Hydrological cycle, precipitation and related data analyses, PMP, unit and synthetic hydrographs; Evaporation and transpiration; Floods and their management, PMF; Streams and their gauging; River morphology; Routing of floods; Capacity of Reservoirs.

Water resources of the globe: Multipurpose uses of Water: Soil-Plant-Water relationships, irrigation systems, water demand assessment; Storages and their yields, ground water yield and well hydraulics; Waterlogging, drainage design; Irrigation revenue; Design of rigid boundary canals, Lacey's and Tractive force concepts in canal design, lining of canals; Sediment transport in canals; Non-Overflow and overflow sections of gravity dams and their design, Energy dissipators and tailwater rating; Design of headworks, distribution works, falls, cross-drainage works, outlets; River training.

Sources of supply, yields, design of intakes and conductors; Estimation of demand; Water quality standards; Control of Water-borne diseases; Primary and secondary treatment, detailing and maintenance of treatment units; Conveyance and distribution systems of treated water, leakages and control; Rural water supply; Institutional and industrial water supply.

Urban rain water disposal; Systems of sewage collection and disposal; Design of sewers and sewerage systems; pumping; Characteristics of sewage and its treatment, Disposal of products of sewage treatment, stream flow rejuvenation Institutional and industrial sewage management; Plumbing Systems; Rural and semi-urban sanitation.

Sources, classification, collection and disposal; Design and Management of landfills.

Sources and effects of air pollution, monitoring of air pollution; Noise pollution and standards; Ecological chain and balance, Environmental assessment. 4 (a) SOIL MECHANICS:
Properties of soils, classification and interrelationship; Compaction behavior, methods of compaction and their choice; Permeability and seepage, flow nets, Inverted filters; Compressibility and consolidation; Shearing resistance, stresses and failure; soil testing in laboratory and in-situ; Stress path and applications; Earth pressure theories, stress distribution in soil; soil exploration, samplers, load tests, penetration tests.

Types of foundations, Selection criteria, bearing capacity, settlement, laboratory and field tests; Types of piles and their design and layout, Foundations on expansive soils, swelling and its prevention, foundation on swelling soils.

5. (a) SURVEYING :
Classification of surveys, scales, accuracy; Measurement of distances - direct and indirect methods; optical and electronic devices; Measurement of directions, prismatic compass, local attraction; Theodolites - types; Measurement of elevations - Spirit and trigonometric leveling; Relief representation; Contours; Digital elevation modeling concept; Establishment of control by triangulations and traversing - measurements and adjustment of observations, computation of coordinates; Field astronomy, Concept of global positioning system; Map preparation by plane tabling and by photogrammetric; Remote sensing concepts, map substitutes.

Planning of highway systems, alignment and geometric design, horizontal and vertical curves, grade separation; Materials and construction methods for different surfaces and maintenance: Principles of pavement design; Drainage. Traffic surveys, Intersections, signaling: Mass transit systems, accessibility and networking. Tunneling, alignment, methods of construction, disposal of muck, drainage, lighting and ventilation, traffic control, emergency management. Planning of railway systems, terminology and designs, relating to gauge, track, controls, transits, rolling stock, tractive power and track modernization; Maintenance; Appurtenant works; Containerization. Harbours - layouts, shipping lanes, anchoring, location identification; Littoral transport with erosion and deposition; sounding methods; Dry and Wet docks, components and operational Tidal data and analyses. Airports - layout and orientation; Runway and taxiway design and drainage management; Zoning laws; Visual aids and air traffic control; Helipads, hangers, service equipment.

IES Eligibility
(I) Nationality:
A candidate must be either:
  • A citizen of India or.
  • A subject of Nepal or A subject of Bhutan or.
  • A Tibetan refugee who came over to Indian before the 1st January, 1962 with the intention of permanently settling in India, or.
  • 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 settling in India.
  • Provided that a candidate belonging to categories (b), (c) and (d) above shall be a person in whose favor a certificate of eligibility has been issued by the Government of India.
(II) Age Limits:
  • 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, of the current year.
  • The upper age-limit of 30 years will be relax able 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)/Posts mentioned in column 2, for which they are otherwise eligible.
  • The upper age-limit prescribed above will be further relaxable:
  • Upto a maximum of five years if a candidate belongs to a scheduled caste or a scheduled tribe.
  • Upto a maximum of three years in the case of candidates belonging to OBC category.
  • Upto a maximum of five years if a candidate had ordinarily been domiciled in the state of Jammu & Kashmir during the period from 1st January, 1980 to the 31st day of December, 1989.
  • Upto a maximum of three years in the case of defense service personnel disabled in operations during hostilities with any foreign country or in a disturbed area, and released as a consequence thereof;
  • Upto a 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 August, and have been released (i) on completion of assignment (including those whose assignment is due to be completed within one year from 1st August, ) 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; (vi) Upto a maximum of five years in the case of ECOs/SSCOs who have completed an initial period of assignment of five years of Military Services as on 1st August, and whose assignment has been extended beyond five years and in whose case the Ministry of Defense 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.
  • Upto a maximum of 10 years in the case of blind, deaf-mute and Orthopaedically handicapped persons.
(III) Minimum Educational Qualification:
  • 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.
  • Passed Section A and B of the Institution Examinations of the Institution of Engineers (India); or.
  • 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.
  • Passed Graduate Membership Examination of the Institute of Electronics and Telecommunication Engineers (India); or.
  • Passed Associate Membership Examination Parts II and III/Sections A and B of the Aeronautical Society of India; or.
  • 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 Engineer Group 'A' in Wireless Planning and Coordination Wing/Monitoring Organization) may possess any of the above qualifications or the qualification mentioned below namely: M.Sc. degree or its equivalent with Wireless Communication, Electronics, Radio Physics or Radio Engineering as a special subject.
Department Allocation
A. Civil Engineering
1. Indian Railway Service of Engineers
2. Central Engineering Service
3. Indian Defense Service of Engineers
4. Indian Railway Stores Service
5. Central Engineering Service (Roads) Group-A
6. Central Water Engineering Service
7. Indian Ordnance Factories Services
8. AEE in P&T building works Group-A Services
9. AEE in Border Road Engg. Services GR-A
B. Mechanical Engineering
1. Indian Railway Service of Mechanical Engineers
2. Indian Railway Stores Service
3. Indian Defense Service of Engineers
4. Central Mechanical & Electrical Engineering Service (Mechanical Post)
5. Central Water Engineering Service Group-A (Mechanical Post)
6. Central Power Engineering Service (Mechanical Post)
7. Indian Ordnance Factories Services
8. Indian Inspection Service Group A
9. Central Engineering Service (Roads) Group-A
10. Indian Supply Service Group A (Mechanical Posts)
11. Assistant Executive Engineer Group A Geological Survey of India
12. Assistant Naval Store Officer Grade-I in Indian Navy
13. Indian Naval Armament Service
14. Assistant Executive Engineer in Corps of EME, Ministry of Defense
C. Electrical Engineering
1. Indian Railway Service of Electrical Engineers
2. Indian Railway Stores Service
3. Indian Defense Service of Engineers(Electrical Posts)
4. Central Mechanical & Electrical Engineering Service (Electrical Post)
5. Central Power Engineering Service (Electrical Post)
6. Indian Ordnance Factories Services
7. Indian Supply Service Group A (Electrical Posts)
8. Assistant Naval Store Officer Grade-I in Indian Navy
9. Indian Naval Armament Service
10. Assistant Executive Engineer in Corps of EME, Ministry of Defense
D. Electronics Engineering
1. Indian Railway Service of Signal Engineers
2. Indian Railway Stores Service
3. Indian Telecom Service Group-A
4. Central Power Engineering Service (E&T Posts)
5. Engineer GCS Group A in WPC/MO(M/O Communication & IT)
6. Indian Inspection Service Group A (E&T Posts)
7. Indian Supply Service Group A (E&T Posts)
8. Indian Ordnance Factories Services
9. Assistant Naval Store Officer Grade-I in Indian Navy
10. Indian Naval Armament Service
11. Assistant Executive Engineer in Corps of EME, Ministry of Defense
IES Success Tips
Among all the career options available for engineers across domains, i.e. in private, public and government sectors still the best, prestigious and coveted career remains that of esteemed Indian Engineering Services (IES). Through Indian Engineering Services (IES) a candidate gets a career in most reputed government departments like Indian Railways, Military Engineering Services, Central Engineering Services, Telecommunication Department, Central Water Services and other esteemed departments.
In Indian Engineering Services (IES), an Engineer gets an opportunity to handle technically challenging roles and tasks technically, which have a direct bearing on the building up of infrastructure and services of our nation.
Strategy for the Engineering Services Examination
The foundation of success can be laid on the resolute efforts but a sound strategy accompanied by never say die spirit makes the recipe of success sipid. Success can’t be achieved overnight hence a prudent strategy matters a lot. For success in Engineering Services Exam, a candidate is required to have excellent fundamentals in the core subjects, along with thorough update on general awareness, current affairs and no less, all the traits of matured personality. Following subsequent points will be worth mentioning and aspirants should necessarily keep a note of the same viz:
  • Get acquainted with the latest examination pattern and syllabus of the exam. Go through the previous year's question papers. Compare them and see what types of questions are repeated every year.
  • It is advisable not to go refer several books for same topic, instead it is better to refer one good book for each topic, which clarifies basic concepts. Selective books are advisable for selected topics.
  • For every candidate time management is very essential along with the setting of target. Johann Wolfgang von Goethe is apt in his words “One always has time enough, if one will apply it well.” The first step which every candidate should follow is to make a time table. Take one subject from each section of your technical syllabus and devote at least 3 hours daily to it. Try to devote 1 hour each to English and General Studies so that you can take an edge as it is key differentiator for being in top rankers.
  • Manage your time table such that it has good distribution of study hours for General Ability Section and technical papers, as it makes studies enjoyable and it becomes easy to sustain the momentum for longer hours, without boredom setting in and without losing interest and enthusiasm.
  • It is always better to prepare short term plan of study, which should be framed in mind and executed.
  • While studying the technical subjects don’t forget to make short notes of important topics. Make a separate list of formulae for each subject and revise the short notes and formulae list daily.
  • When you are solving the question set the time limit and after the completion of it check whether you have completed the task within stipulated time or not.
  • It is better to practice questions on OMR sheets for marking the answers, which will help to practice the marking of correct answers on OMR sheets quickly in the examinations.
  • After completion of it take another subject and follow the same guidelines and don’t forget to revise the important portion and your short notes of the subject which you have prepared earlier.
  • While preparing the English, segregate the vocabulary from previous 10 years paper of Engineering Services Examination and Combined Defense Services Examination. Try to memorize at least 20 words daily and don’t miss to revise those words.
  • The next step to prepare the portion of English is solve daily 10 to 15 questions based on finding errors and rearrangement of sentences.
  • From the topics of general studies first of all find out the area of your interest and study it in the form of story or try to correlate the things. It will develop interest and make the things comfortable.
  • Read Newspaper and articles, watch morning bulletin, surf websites in order to prepare for General Ability section. The current affairs coverage is required till 45 days before the date of examination.
  • Solve all the previous papers of General studies so that you can come to know the main areas of GS.
  • For making your conventional portion strong and for securing good marks in it, try to solve at least 5 questions daily from the previous 10 years paper and solve expected conventional questions from the topic you are studying same day. It will improve your presentation and enhance the writing skills along with the rectification of the silly mistakes made by the candidates during the examination.
  • Always remember “Practice Makes a Man Perfect”. Reserve last 15 days, for quick practice and revision. Solve as many papers you can. The more you will solve the question more marks you will gain. Practice full-length mock test, comprising of all the sections, within the fixed time period.
Tips and tricks for solving the papers
  • The first motto while solving the question papers is to utilize your time optimally.
  • The Objective Paper-I consists of 120 questions which are evenly based on English and General Studies. The questions on the topics of rearrangement of sentences and Comprehension are tedious and time consuming so it is suggested to solve those questions after completion of rest of the paper.
  • While solving the comprehension part first read the passage then read the questions asked and then mark the lines which are related to the questions.
  • If you are not able to solve a particular question then don’t waste your time on it and don’t get disheartened. Move to other questions and solve tough question at the end.
  • While solving technical objective papers, try to solve the questions on theory first and then work on numerical questions as there is Negative Marking for each wrong answer and cut off is to be cleared in these papers hence never try to mark those answers on which you are not confident.
  • On third day of examination there are two conventional papers. Before solving the paper, first of all read the question paper thoroughly and mark those questions in which you can perform your best.
  • Write the answers, step by step in tidy manner to give an impressive presentation and by doing this the candidate will not miss the essential points and formulae. If some diagram is required try to make well labeled and neat diagram with freehand sketch. You will get the credit for orderly, effective, and exact expression combined with due economy of words in the conventional papers of the examination.
  • Write formulae in the numerical, S.I units of concerned quantities and answers as well.
Steps to enhance your performance
  • The examination requires consistency, never say die spirit and most important is self motivation. Healthy ideas grow in healthy mind so alongwith studies do devote some time for recreation this will make enhance the memorizing power and efficiency.
  • Keep safely documents related to examination such as acknowledgment of application, hall ticket, application number and other details. This is to avoid last minute tension for obvious things.
  • One day before the examination don’t study much, just revise the important notes which you have made. Relax and sleep for atleast 6 hours so that you write exam with fresh mind.
  • Keep atleast 2 sharpened pencils, eraser, sharpener, 2 pens, calculator, hall ticket, etc. in your examination kit. Leave for your exam timely and don’t study much on the same day during travelling.
Electronics Engineering
S. No.SubjectBook NameAuthor
1Optical Fiber CommunicationsOptical Fiber Communications John M. Senior
2Measurement and InstrumentationElectrical & Electronics Measurement and InstrumentationA. K. Sawhney
Electronic InstrumentationH.S. Kalsi
3Material Science Electrical Engineering Material ScienceS. P. Seth
4Network TheoryNetwork & SystemsD. Roy Chaudhury
Engineering Circuit AnalysisWilliam H. Hayt
5Microwave EngineeringMicrowave Devices & CircuitsSamuel L Liao
Microwave EngineeringSanjeev Gupta
Microwave EngineeringDavid M. Pozar
Microwave & Radar EngineeringM. Kulkarni
6Computer EngineeringMicroprocessor Architecture, Programming & ApplicationRamesh S. Gaonkar
Computer Organisation and StructureStalling
Microprocessor & InterfacingsDouglas V. Hall
Computer Architecture & OrganisationsMorris Mano
7Digital ElectronicsDigital Design M. Morris Mano
Digital SystemsTocci & Widmer
Modern Digital ElectronicsR.P. Jain
8 ElectroMagnetic TheoryElements of ElectromagneticsSadiku
Engineering of ElectromagneticsW.H. Hayt
Antenna & Wave Propagation K.D. Prasad
Elements of Engineering ElectromagneticsN. N. Rao
9Control SystemsControl System Engineering I. J. Nagrath & M. Gopal
Automatic Control SystemsB. C. Kuo
Linear Control SystemsB. S. Manke
10Monochrome and Colour Television Monochrome and Colour Television R. R. Gulati
11 Satellite CommunicationsSatellite CommunicationsTimothy Pratt & Charless W. Bostian
12 Signals and Systems Signals and Systems Aaln V Oppenheim, Aaln S. Willsky & S. Hamid Nawab ( Prentice Hall of India)
13Communication Systems Communication SystemsSimon Haykins
An Introduction to Analog and Digital CommunicationsSimon Haykins
Communication: Analog & DigitalSingh and Sapre
Modern Digital and Analog Communication SystemsB.P. Lathi
Electronic Communication Systems Kennedy and Davis
14Electronic Devices and Circuits & Analog ElectronicsIntegrated Electronics: Analog & Digital Circuit & SystemsJacob Millman & Christos C. Halkias
Microelectronic CircuitsSedra & Smith
Electronic Devices & CircuitsJ.B. Gupta
OP-Amp and linear Integrated CircuitsRamakant A. Gayakwad
Solid State electronic Devices Streetman and Banerjee
Semiconductor devicesS. M. Sze
15 General EnglishGeneral EnglishMADE EASY Publications
16General StudiesGeneral Studies(Indian History, Geography(India & World), Indian Polity, Life Science, General Knowledge, Indian Economics)MADE EASY Publications
17Current AffairsCurrent AffairsMADE EASY Publications
18Previous IES Solved PapersPrevious IES Solved PapersMADE EASY Publications
19Analog CircuitsA text book on Analog Circuits A.Rajkumar
Electrical Engineering
S. No.SubjectBook NameAuthor
1Power ElectronicsPower Electronics P.S. Bhimbra
2Micro ProcessorsMicro Processors for theory portionGaonkar
Micro Processors for Programming examplesB. Ram
3Analog & Digital ElectronicsAnalog & Digital Electronics Millman & Halkias
Analog & Digital ElectronicsGayakwad
Analog & Digital ElectronicsMorris Mano
Analog & Digital Electronics for Digital Logic FamiliesTaub & Shielling
4Power SystemsPower SystemsNagrath & Kothari
Power SystemsC.L. Wadhwa
Power SystemsA. Hussain
5Electrical Machines and Power Transformers Electrical Machines and Power Transformers P.S. Bhimbra
Electrical Machines and Power Transformers Nagrath& Kothari
6Control Systems Control System Engg. I.J. Nagrath& M. Gopal
Automatic Control SystemsB.C. Kuo
Linear Control SystemsB.S. Manke
7Measurement & InstrumentationMeasurement & Instrumentation A. K. Sawhney
Measurement & InstrumentationCooper
8Electrical CircuitsElectrical Circuits for Resonant Circuits, elements of two element network synthesis, etcD-Roy Chaudhary
Electrical Circuits for transfer function of n/w in terms of poles and zerosSudhakarShyam Mohan
Electrical Circuits for Circuit elements, Kirchhoff' Law, Mesh and Nodial Analysis, Network Theorem & ApplicationsChakrabarthy
9E. M. Theory E. M. Theory for coulombs law, Gauss's Law, Conductors etc.W. B. Hayt
E. M. Theory for Magneto statics, Amperes law, Magnetic materials Sadiku
E. M. Theory for Numerical examplesSchaum Series
10 Signal and System Signal and System Oppenheim and Willsky
11 Engg. Mathematics Engg. Mathematics MADE EASY Publications
12 Verbal & Numerical Ability Verbal & Numerical Ability MADE EASY Publications
13 Previous GATE Solved Papers Previous GATE Solved Papers MADE EASY Publications
14 Analog Circuits A text book on Analog Circuits A.Rajkumar
Mechanical Engineering
S. No.SubjectBook NameAuthor
1Strength of MaterialsStrength of MaterialsB.C. Punamia
Strength of MaterialsTimoshenko
Strength of MaterialsRama Murtham
2 Operations Research Operations Research KantiSwarup
3 Industrial Engg. Industrial Engg. Buffa&Sarin
4 Production Engg. Production Engg. Kalpika Jain, Amitabh Ghosh & A.K. Malik
5 Material Science Material Science UC. Jindal,W.D. Callister, I.P. Singh
6 Machine Design Machine Design Shigley, V.B. Bhandari
7 Mechanical Vibration Mechanical Vibration Grover
8 Theory of Machines Theory of Machines R.S. Khurmi, Malik &Ghosh
9 Fluid Machinery Fluid Machinery D.S. Kumar, R.K. Bansal
10 Refrigeration & Air Conditioning Refrigeration & Air Conditioning C.P. Arora, Domkundwar
11 Heat & Mass Transfer Heat & Mass Transfer J.P. Hollman& R.C. Sachdeva
12 Fluid Mechanics Fluid Mechanics Modi& Seth, R.K. Bansal
13 Engg. Thermodynamics Engg.Thermodynamics P.K. Nag
14 I.C. Engine I.C. Engine M.L. Mathur, R.P. Sharma
15 Engg. Mathematics Engg. Mathematics MADE EASY Publications
16 Verbal & Numerical Ability Verbal & Numerical Ability MADE EASY Publications
17 Previous GATE Solved Papers Previous GATE Solved Papers MADE EASY Publications
18 Production Engineering A text book on Production Engineering Dr. Swadesh Singh
19 Engineering Mechanics A text book on Engineering Mechanics Dr. U.C.Jindal
20 Engineering Materials Material Science & Metallurgy Dr. U.C.Jindal
21 Strength of Materials A text book on Strength of Materials Dr. U.C.Jindal
Civil Engineering
S. No.SubjectBook NameAuthor
1Strength of MaterialsStrength of Materials/Mechanics of Structure for properties of metals, Principal Axis, etc.Gere & Timoshenko
Strength of Materials for transformation of stresses, Properties of MetalsE. Popov
Strength of Materials for unsolved problemsL. Singer
Strength of Materials for Solved problems, Theory of average readingB.C. Punamia
2Theory of Structures/Analysis of StructureTheory of Structures/Analysis of StructureS Ramamrutham
Theory of Structures/Analysis of StructureL.S. Negi & Jangid
Theory of Structures/Analysis of Structure Gupta & Pandit
Theory of Structures/Analysis of StructureS Ramamrutham
3R. C. C. Design R. C. C. Design B. C. Punamia
R. C. C. DesignA. K. Jain
R. C. C. Design IS: 456-2000
4Steel DesignSteel Design S.K. Duggal
Steel DesignL. S. Negi
Steel DesignIS: 800-1984
5Environmental Engg. Environmental Engg.B. C. Punamia Part I & Part II
Environmental Engg.S. K. Garg Part I & Part II
Environmental Engg.Peavy & Rowe
Environmental Engg.Metcalf & Eddy
6 Soil Mechanics & Foundation Engg. Soil Mechanics & Foundation Engg.GopalRanjan & Rao
Soil Mechanics & Foundation Engg. VenkatRamaiha
Soil Mechanics & Foundation Engg.S. K. Garg
Soil Mechanics & Foundation Engg.B. C. Punamia
7Fluid Mechanics & Fluid Machines Fluid Mechanics & Fluid MachinesModi& Seth
Fluid Mechanics & Fluid MachinesR. K. Bansal
Fluid Mechanics & Fluid MachinesK. Subramanya
Fluid Mechanics & Fluid MachinesA. K. Jain
Fluid Mechanics & Fluid MachinesJagdishLal
8Highway Engg.Highway Engg.Khanna& Justo
Highway Engg.Kadiyali
9 Surveying Surveying B.C.Punamia I, II, III
10 Hydrology Engg. Hydrology Engg. K.Subramanyam
11 Irrigation Engg. Water Resources S.K. Garg
12 Engg. Mathematics Engg. Mathematics MADE EASY Publications
13 Verbal & Numerical Ability Verbal & Numerical Ability MADE EASY Publications
14 Previous GATE Solved Papers Previous GATE Solved Papers MADE EASY Publications
15 Strength of Materials A text book on Strength of Materials Dr.U.C.Jindal
Electronics Engineering
  • What is saturation voltage of BJT?
  • What is slew rate?
  • Mention the frequency ranges of FM and AM.
  • What are the important characteristics of Op-AMP?
  • Explain the working principle of Railway signal system?
  • What is core-diameter of optical fibre? Mention different types of optical fibre.
  • How two signals can be added? Represent it by circuit diagram.
  • What is 3G? Mention important features of 3G.
  • How GSM band is allocated to service providers?
  • Explain the biasing principle of npn transistor.
Electrical Engineering
  • Differentiate between Hysterisis loss and Eddy current loss.
  • How to increase starting torque of induction motor?
  • What happens if AC current is applied to DC motor?
  • What is smart grid?
  • Which are the different types of motors used in domestic purpose?
  • Differentiate between commutator and rectifier.
  • Explain the working of diesel locomotive and electric locomotive.
  • How to calculate the efficiency of transmission lines?
  • What is skin effect? Derive its relation with frequency.
  • Explain parallel operations of transformer.
Mechanical Engineering
  • What are CNC machines? Explain about programming of different components in CNC machines.
  • What are different operations performed in miling machines?
  • Explain about ABC Analysis and Pareto analysis.
  • What are the factors to be considered for Gear design?
  • What are the advantages of radiators? Why radiators are located at the front of automobile engine?
  • Define reversible and irreversible process. Why reversible process is more efficient?
  • What is water turbine? Differentiate between steam and water turbine.
  • State zeroth law of Thermodynamics and explain its practical application.
  • Is it possible to convert petrol engine into CNG?
  • What is Reynolds number? What is its significance? How it can be measured?
Civil Engineering
  • Draw Stress and Strain diagram and explain all critical points.
  • What is approximate railway track length all over India?
  • What are different types of soil?
  • Why tensile strength of concrete is less than compressive strength?
  • What is compaction factor?
  • What are the different gauges used in Indian Railways?
  • How to measure concrete workability?
  • Explain major properties of RCC.
  • Explain destructive and non-destructive tests for cement?
  • What are the factors to be considered in dam construction?