IES 2021 Syllabus (Subject Wise) PDFs, Important Topics for CE, ME, EE and ECE

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Mar 19, 2021

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Anam Shams

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IES Syllabus 2020 has been released by Union Public Services Commission along with the notification. The syllabus has been similar over the years. IES Syllabus and level of difficulty in the examination will be based on the engineering graduation curriculum.

Crash Course

Separate IES Syllabus is laid down for various engineering discipline- 

Candidates have to indicate their opted discipline in the application form. The question paper will be based on the engineering discipline opted by the candidate. However, IES Prelims exam will have General Studies and Engineering Aptitude paper which is common for every candidate. Read further to know about IES Exam pattern, syllabus, and important books for every discipline. 

IES Exam Pattern

IES Exam Pattern and Syllabus 2020

Before delving into preparation, it is essential to develop a proper strategy and understand the exam pattern and know the syllabus well to ace the exam.

  • IES 2020 consists of two written examinations – The preliminary exam and Main exam, and a personal interview round.
  • Both the Prelims and Main exam will have two papers each– Paper 1 and Paper 2.
  • IES Prelims Paper 1 is General Studies and Engineering Aptitude which is the same for every candidate.
  • It will test candidates’ general knowledge on issues of national and international importance relating to social, economic, and industrial development and Engineering Aptitude covering logical reasoning, analytical ability, mathematics, ethics, and values in the engineering profession.
  • Prelims Paper 2 and both the papers in the Main exam will be based on a candidate’s choice of engineering discipline amongst civil engineering, mechanical engineering, electrical engineering, and electronics & telecommunication engineering.
IES Exam Pattern, IES Paper Pattern, ESE Exam Pattern, ESE Paper Pattern

Official IES Syllabus for General Studies & Engineering Aptitude and all 4 engineering disciplines are mentioned below in detail. Candidates may download IES Sample Papers to get a better idea about the pattern and syllabus of the exam.

IES Syllabus for General Studies & Engineering Aptitude

General Studies and Engineering Aptitude Syllabus will test candidates’ knowledge of relevant topics as may be expected from an engineering graduate, without special study. The paper will have questions from all the 10 topics mentioned below. Each topic will have a weightage of 5% to 15% of the total marks in the paper.

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

IES General Studies & Engineering Aptitude Books

IES 2020 GK and EA Books ESE General Studies Book IES General Studies Books
Name of the Book Author/ Publisher
ESE 2020 General Studies & Engineering Aptitude  GKP
General Studies & Engineering Aptitude Practice book ME Editorial
ESE 2020 Prelims General Studies & Engineering Aptitude Practice book ME Editorial
IES Syllabus

IES Syllabus 2020 for Mechanical Engineering (ME)

Mechanical Engineering branch applies the principles of engineering, physics, and material science for the design, analysis, manufacturing, and maintenance of mechanical systems. Tabulated below is the official IES Mechanical Engineering Syllabus:

IES ME Syllabus for Paper 1

Topics IES Mechanical Engineering Syllabus
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.
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 co-efficient; boiling and condensation, Heat exchanger performance analysis.
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. Vapor compression refrigeration, Refrigerants, and Working cycles, Compressors, Condensers, Evaporators and Expansion devices, Other types of refrigeration systems like Vapour Absorption, Vapour jet, thermoelectric, and Vortex tube refrigeration. Psychometric properties and processes, Comfort chart, Comfort and industrial air conditioning, Load calculations, and Heat pumps.
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
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
Renewable Sources of Energy 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.

IES ME Syllabus for Paper 2

Topics IES Mechanical Engineering Syllabus
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.
Engineering Materials Basic Crystallography, Alloys and Phase diagrams, Heat Treatment, Ferrous, and Non-Ferrous Metals, Nonmetallic materials, Basics of Nano-materials, Mechanical Properties and Testing, Corrosion prevention and control
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.
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.
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.
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 SystemsMathematical 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
IES Books

IES Mechanical Engineering Books 2020

Name of the Book Author/ Publisher
Engineering Thermodynamics P.K. Nag
Introduction to Fluid Mechanics & Fluid Machines S K Som, Gautam Biswas, S Chakraborty
 Fundamentals of Engineering Heat and Mass Transfer R.C. Sachdeva
Theory of Machines S S Rattan
Engineering Mechanics S. Timoshenko, D.H. Young, J.V. Rao, Sukumar Pati

IES Syllabus 2020 for Civil Engineering (CE)

IES Civil Engineering Exam 2020 is one of the most reputed streams. Tabulated below are the important topics of IES Civil Engineering Syllabus:

IES CE Syllabus for Paper 1

Topics IES Civil Engineering Syllabus
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.
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.
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.
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.
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.
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.

IES CE Syllabus for Paper 2

Topics IES Civil Engineering Syllabus
Flow of Fluids, Hydraulic Machines and Hydro Power

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.

Hydraulic Machines and Hydropower: Various pumps, Air vessels, Hydraulic turbines – types, classifications & performance parameters; Powerhouse – classification and layout, storage, pondage, control of supply.

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; Waterlogging, 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.
Environmental Engineering

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.

Waste Water Engineering: Planning & design of domestic wastewater, 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.

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.

Air, Noise pollution, and Ecology: Concepts & general methodology.

Geotechnical Engineering and Foundation Engineering

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

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.

Surveying and Geology

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.

Geology: Basic knowledge of Engineering geology & its application in projects.

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.

IES Civil Engineering Books 2020

Name of the Book Author/ Publisher
Basic Structural Analysis C.S.Reddy
R.C.C. Designs B.C.Punmia, Ashok Kumar Jain, Arun Jain
Design Of Steel Structures S.K Duggal 
Surveying (vol. 1,2,3) B.C.Punia, Ashok Jain, Arun Jain
Engineering Hydrology K Subramanya

IES Syllabus 2020 for Electrical Engineering (EE)

Electrical engineering is a field of engineering that generally deals with the study and application of electricity, electronics, and electromagnetism. Tabulated below is the official IES Syllabus for Electrical Engineering:

IES EE Syllabus for Paper 1

Topics IES Electrical Engineering Syllabus
Engineering Mathematics Matrix theory, Eigen values & Eigen vectors, system of linear equations, Numerical methods for the solution of non-linear algebraic equations and differential equations, integral calculus, partial derivatives, maxima and minima, Line, Surface and Volume Integrals. Fourier series, linear, non-linear 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.
Electrical Materials Electrical Engineering Materials, crystal structures, and defects, ceramic materials, insulating materials, magnetic materials – basics, properties and applications; ferrites, ferromagnetic materials, and components; basics of solid-state physics, conductors; Photo-conductivity; Basics of Nano materials and Superconductors.
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.
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 multimeters, phase, time and frequencymeasurement, Q-meters, oscilloscopes, potentiometric recorders, error analysis, Basics of sensors, Transducers, basics of data acquisition systems
Computer Fundamentals Number systems, Boolean algebra, arithmetic functions, Basic Architecture, Central Processing Unit, I/O and Memory Organisation; peripheral devices, data representation and programming, basics of Operating system, and networking, virtual memory, file systems; Elements of programming languages, typical examples.
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.

IES EE Syllabus for Paper 2

Topics IES Electrical Engineering Syllabus
Analog and Digital Electronics
Operational amplifiers – characteristics and applications, combinational and sequential logic circuits, multiplexers, multivibrators, 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 band, transmitters and receivers, signal to noise ratio, digital communication basics, sampling, quantizing, coding, frequency and time domain multiplexing, power line carrier communication systems.
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
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.
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.
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.
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.

IES Electrical Engineering Books 2019

Name of the Book Author/ Publisher
Electrical Power Systems C. L. Wadhwa
Electrical Machinery Author's Name: P. S. Bimbhra
Control Systems Engineering I.J.Nagrath, M. Gopal
Power System Engineering I Nagrath, D Kothari

IES Syllabus for Electronics and Telecommunication Engineering

This is a discipline that combines electrical and communication engineering together. Electronics and Communication Engineering Syllabus for IES 2020 is tabulated below:

IES ECE Syllabus for Paper 1

Topics IES Electronics and Telecommunication Engineering Syllabus
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 Optoelectronics and its applications.
Basic Electrical Engineering DC circuits ohm's & Kirchoff’s laws, mesh and nodal analysis, circuit theorems; Electromagnetism, 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.
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, nanoparticles and uses; Nano-optical/magnetic/electronic materials and uses; Superconductivity, uses.
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.
Network Theory Network graphs & matrices; Wye-Delta transformation; Linear constant coefficient differential equations- time-domain analysis of RLC circuits; 26 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.
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, waveshaping, 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.

IES ECE Syllabus for Paper 2

Topics IES Electronics and Telecommunication Engineering Syllabus
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.
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.
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; Databases, different types, characteristics, and design; Transactions and concurrency control; Elements of programming languages, typical examples.
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.
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.
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.

IES Electronics and Telecommunication Engineering Books

Name of the Book Author/ Publisher
Microelectronic Circuits: Theory and Applications Adel S. Sedra, Kenneth C. Smith
Fundamentals of Electric Circuits Charles K. Alexander, Matthew N. O. Sadiku
Automatic Control Systems Benjamin C. Kuo
Digital Logic and Computer Design M. Morris Mano
Principles of Communication Systems Goutam Saha, Herbert Taub, Donald Schilling

IES 2020 Syllabus FAQs

Ques. How many Papers are there in IES exam?

Ans. IES Preliminary exam and Main exam will have 2 papers each – Paper 1 and Paper 2. IES Prelims Paper 1 is common for all the candidates which are General Studies and Engineering Aptitude. Prelims Paper 2 and Paper 1 and 2 of the Main exam are the engineering discipline (CE/ EE/ ME/ ECE) paper opted by the candidate.

Ques. What is the syllabus for IES Electronics and Telecommunication Engineering Paper?

Ans. IES Electronics and Telecommunication Engineering Syllabus includes Basic Electronics Engineering, Basic Electrical Engineering, Electronic Measurements and Instrumentation, Computer Organization and Architecture, Advanced Electronics Topics and Advanced Communication Topics.

Ques. What are the most asked topics in IES Civil Engineering Exam?

Ans. The highest weightage is given to Building Materials, Structural Analysis, Design of Steel Structures, Environmental Engineering, Geotechnical Engineering and Foundation Engineering, and Transportation Engineering.

Ques. What are the most important topics for IES Mechanical Engineering Paper?

Ans. Thermodynamics and Heat transfer, IC Engines, Refrigeration, and Air conditioning, Engineering Mechanics, Manufacturing, Industrial and Maintenance Engineering, and Mechatronics and Robotics are the most important topics for Mechanical Engineering Paper.

Ques. What topics are given the highest weightage in IES Electrical Engineering Paper?

Ans. In Electrical Engineering Paper, Engineering Mathematics, Electrical, and Electronic Measurements, Electric Circuits and Fields, Analog and Digital Electronics and Power Systems topics are given the highest weightage.

Ques. What are some of the suggested books for General Studies and Engineering Aptitude?

Ans. GKP’s ESE 2020 General Studies and Engineering Aptitude and ME Editorials’ General Studies and Engineering Aptitude Practice Books are some of the suggested books for IES Prelims Paper 1.

3 Months Crash Course


*The article might have information for the previous academic years, please refer the official website of the exam.


divakar sharma
What is the IES electrical preliminary exam syllabus?
kavita rani

Hi Divakar. IES Prelims Paper 1 will have General Studies and Engineering Aptitude which is the same for all the students giving the exam while Prelims Paper 2 will be based on a candidate’s choice of engineering discipline including civil engineering, mechanical engineering, electrical engineering, and electronics & telecommunication engineering. For more details, refer here.

sourajit mukherjee
What is the difference between the syllabus of mechanical engineering GATE & IES exam?
kavita rani

Hi Sourajit. The syllabus for both, GATE and IES exams are quite similar to each other. The IES syllabus covers the entire engineering syllabus; however, the GATE syllabus includes only what will help candidates in their higher studies. GATE is an objective paper and is designed to check the problem-solving capabilities of the candidates.

deep jyoti das
What is the IES exam, and what is the syllabus for IES civil engineering?
kavita rani

Hi Deep. IES means the Indian Engineering Services exam which is a a national level exam taken by UPSC.Some of the important topics that will be asked in the exam include Theory of Bending Stresses- Slope and deflection-Torsion, Thin and thick Cylinders, Spheres, Inversions, Kinematic Analysis, Velocity and Acceleration Analysis of Planar Mechanisms among others mentioned here.

vishal sharma
What is the syllabus of IES exam for the CSE student?
kavita rani

Hi Vishal. A separate IES Syllabus is designed for several engineering discipline including Mechanical Engineering Syllabus, Civil Engineering Syllabus, Electrical Engineering Syllabus, and Electronics & Telecommunication Engineering Syllabus. The detailed syllabus is mentioned here.

kavita rani

Hi vishal. IES Syllabus for General Studies & Engineering Aptitude include Current issues, Engineering Mathematics and Numerical Analysis, General Principles of Design, Information and Communication Technologies, etc. Each topic holds a weightage of 5% to 15% of the total marks in the paper.
For more information refer here.

shivani lahamge
I want to know more about this exams.
shobhna chaturvedi

Hi Shivani, you can read more about this exam from here: IES Exam 2020

nalluri sandhya
sir ..i want to clarity abou ies .please give me suggetion for ies praparation
shobhna chaturvedi
Hi Nalluri, kindly go through the syllabus and pattern of the exam from the article above and then you can segregate the timing within the subjects as per your convenience for preparation.
vishal chaudhary
Can a computer science student appear in IES examination? Can u help?
alok pandey

Hello Vishal, To know about the eligibility criteria please click on Eligibilty Criteria.

Sir,How much Cgpa or percentage criteria should be in for UPSC IES exam?
akansha expert

Hi Piyush, Please check this link for getting the IES Eligibility criteria.

How to study for IES?
bhawna vedwal

Hello Priti, The following tips help you to prepare for IES-

  1. Refer the standard books for preparation.
  2. You must understand the Exam pattern and syllabus.
  3. Prefer book according to your syllabus.
  4. plan a schedule to prepare subject wise.
  5. Always Practice previous year question paper.
  6. Keep enough time for revising concepts.
  7. Make sure you cover full syllabus and no doubt remain pending.
  8. Make short notes to recall the concepts.
  9. Don’t give break of 2 or 3 days during your preparation 
dipak dhonde
You told Always Practice previous year question paper. So please forward any link for those practice papers.
akansha expert

Hi Dipak, Please check this link for getting the Practice paper for IES.