One of the most sought-after exams, Indian Engineering Services is conducted annually by UPSC. IES Syllabus is divided into Civil, Mechanical, Electrical Electronics and Telecommunications branches. IES is considered one of the toughest exams in India with around 2 lakh applicants applying for a limited number of posts. The fame and luxury associated with the posts are unmatched as the professionals after the exam are likely to handle the top positions in the government while leading the technical team. In this blog, we will have a look at the IES syllabus.
| Exam | Engineering Services Exam |
| Conducted By | Union Public Services Exam |
| Exam Frequency | Once a year |
| Exam Level | National Level |
| No. of Vacancies | 495 |
| Age Limit | 21-30 years |
| Selection Process | Preliminary Round, Exam, Interview |
| Application Fees | INR 200 |
| Official Website | www.upsc.gov.in |
What is the IES Exam?
Indian Engineering Services or the Engineering Service Examination is an exam conducted for engineers who wish to work under government-related services. The career of a Government Engineer entails them understanding and heading projects in their own field of work. A Government engineer can start from an Assistant Engineer position and can go to Chairman/ Director level.
IES 2023 Exam Dates
| Notification | 14 September 2022 |
| Start of Online Application | 14 September 2022 |
| Deadline for Online Application | 04 October 2022 |
| Admit Card Release | 27 January 2023 |
| IES Prelims Exam | 19 February 2023 |
| IES Prelims Result | 03 March 2023 |
| IES Mains Exam | 25 June 2023 |
IES Syllabus 2023
The syllabus for the paper-I of stage-I is common for all branches but it varies greatly for other papers. Given below is the syllabus for all four Engineering branches:
- Civil Engineering
- Mechanical Engineering
- Electrical Engineering
- Electronics and Telecommunications Engineering
IES Syllabus for Civil Engineering
| Paper-I | Paper-II |
| 1. Building Materials | 1. Flow of Fluids, Hydraulic Machines and Hydropower |
| Plastics, Steel, Stone, Lime, Glass, FRP, Ceramics, Basic Admixtures and Aggregates: Classification, Cement: Types, Composition, Properties, Uses, Specifications and Various Tests, etc | (a) Fluid Properties, Dimensional Analysis and Modeling, Fluid Dynamics, Flow Net, Viscosity, Boundary Layer and Control, Open Channel Flow, Flow Controls, etc. (b) Hydraulic Machines and Hydropower – Various Pumps, Powerhouse – Classification and Layout, Storage, Pondage, Control of Supply, etc |
| 2. Solid Mechanics | 2. Hydrology and Water Resources Engineering |
| Elastic Constants, Mohr’s Circle of Stress and Strain, Elastic Theories of Failure, Stress, Strains, Bending, Shear and Torsion. | Hydrological Cycle, Ground Water Hydrology, Well Hydrology River Morphology, Flood, Drought and their Management, Canal Design, Measurement and Analysis of Rainfall, etc. |
| 3. Structural Analysis | 3. Environmental Engineering |
| Basics of Strength of Materials, Types of Stresses and Strains, Bending Moments and Shear Force, Concept of Bending and Shear Stresses, Suspended Cables, Concepts and Use of Computer-aided Design, etc. | (a) Water Supply Engineering: Sources, Estimation, Quality Standards and Testing of Water and Their Treatment. (b) Waste Water Engineering: Planning & Design of Domestic Wastewater, Sewage Collection and Disposal, Plumbing Systems, etc. (c) Solid Waste Management: Sources & Classification of Solid Wastes Along with Planning & Design of Its Management System. (d) Air, Noise Pollution and Ecology: Concepts & General Methodology. |
| 4. Design of Steel Structures | 4. Geotechnical Engineering and Foundation Engineering |
| Principles of Working Stress Methods, Design of Tension and Compression Members, Design of Beams and Beam-column Connections, Built-up Sections, etc | (a) Geo-technical Engineering: Soil Exploration – Planning & Methods, Properties of Soil, Classification, Earth Pressure Theories, 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. |
| 5. Design of Concrete and Masonry Structures | 5. Surveying and Geology |
| Limit State Design for Bending, Shear, Axial Compression and Combined Forces; Design of Beams, Earthquake Resistant Design of Structures, Design of Masonry Structure, etc | (a) Surveying: Classification of Surveys, Various Methodologies, Instruments & Analysis of Measurement of Distances, Elevation and Directions, etc. (b) Geology: Basic Knowledge of Engineering Geology & Its Application in Projects. |
| 6. Construction Practice, Planning and Management | 6. Transportation Engineering |
| Construction – Planning, Equipment, Site Investigation and Management Including Estimation with the Latest Project Management Tools and Network Analysis for Different Types of Works, etc. | Highways – Planning & Construction Methodology, Alignment and Geometric Design, Traffic Surveys and Controls; Principles of Flexible and Rigid Pavements Design, Tunnelling, etc |
IES Syllabus for Mechanical Engineering
| Paper-I | Paper-II |
| 1. Fluid Mechanics | 1. Engineering Mechanics |
| Basic Concepts and Properties of Fluids, Manometry, Fluid Statics, Buoyancy, Equations of Motion, Bernoulli’s equation and applications, etc. | Analysis of System of Forces, Friction, Centroid and Centre of Gravity, Dynamics, Stresses and Strains-Compound Stresses and Strains, etc |
| 2. Thermodynamics and Heat transfer | 2. Engineering Materials |
| Thermodynamic Systems and Processes, Properties of Pure Substance, Ideal and Real Gases, Compressibility Factor, Gas Mixtures, Modes of Heat Transfer, etc | Basic Crystallography, Alloys and Phase Diagrams, Heat Treatment, Ferrous and Non-Ferrous Metals, Non-metallic Materials etc. |
| 3. IC Engines, Refrigeration and Air conditioning | 3. Mechanisms and Machines |
| SI and CI Engines, Engine Systems and Components, Thermo Electric and Vortex Tube Refrigeration, Psychometric Properties and Processes, etc | Types of Kinematics Pair, CAMs Cycloidal Motion, Oscillating Followers, Vibrations, Geometry of Tooth Profiles, Law of Gearing, Gyroscopes in Ships and Aircraft, Governors. |
| 4. Turbo Machinery | 4. Design of Machine Elements |
| Reciprocating and Rotary pumps, Pelton wheel, Kaplan and Francis Turbines, Steam and Gas Turbines, Theory of Jet Propulsion, etc | Design for Static and Dynamic Loading, Failure Theories, S-N Diagram; Principles of the Design of Machine Elements, etc. |
| 5. Power Plant Engineering | 5. Manufacturing, Industrial and Maintenance Engineering |
| Rankine and Brayton Cycles with Regeneration and Reheat, Fuels and their Properties, Flue Gas Analysis, Boilers, Steam Turbines and other Power Plant Components, etc | Metal Casting-Metal Forming, Metrology and Inspection, Computer Integrated Manufacturing, Operations Research – CPM-PERT. NDT Techniques in Condition Monitoring, etc |
| 6. Renewable Sources of Energy | 6. Mechatronics and Robotics |
| Solar Thermal Energy Collection, Solar Photovoltaic Conversion; Harnessing of Wind Energy, Bio-mass and Tidal Energy, etc | Microprocessors and Microcontrollers: Architecture, Programming, I/O, Mathematical Modeling of Physical Systems, Control Signals, Controllability and Observability. Robotics, Equation of Four Axis Scara Robot, etc. |
IES Syllabus for Electrical Engineering
| Paper-I | Paper-II |
| 1. Engineering Mathematics | 1. Analog and Digital Electronics |
| Matrix Theory, Eigen Values & Eigen Vectors, System of Linear Equations, Numerical Methods for Solution of Non-linear Algebraic Equations, etc | Operational Amplifiers – Characteristics and Applications, Combinational and Sequential Logic Circuits, Multiplexers, Multi-vibrators, Microprocessor Basics, Basics of Linear Integrated Circuits, etc |
| 2. Electrical Materials | 2. Systems and Signal Processing |
| Electrical Engineering Materials, Crystal, Ceramic Materials, Insulating Materials, Photo-conductivity; Basics of Nano Materials and Superconductors, etc | Representation of Continuous and Discrete-time Signals, Shifting and Scaling Operations, Linear, Time-invariant and Causal Systems, Fourier Series, etc |
| 3. Electric Circuits and Fields | 3. Control Systems |
| Circuit Elements, Network Graph, KCL, KVL, Thevenin’s, Norton’s, Superposition, Maximum Power Transfer Biot-Savart’s Laws, Maxwell’s Equations, etc | Principles of Feedback, Transfer Function, Block Diagrams and Signal Flow Graphs, Steady-state Errors, Routh-Hurwitz Criterion, Nyquist Techniques |
| 4. Electrical and Electronic Measurements | 4. Electrical Machines |
| Principles of Measurement, Bridges and Potentiometers; Moving Coil, Dynamometer and Induction Type Instruments, Measurement of Voltage, etc | Single Phase Transformers, Three Phase Transformers, Generator Characteristics, Armature Reaction and Commutation, etc |
| 5. Computer Fundamentals | 5. Power Systems |
| Number Systems, Boolean Algebra, Arithmetic Functions, Basic Architecture, Central Processing Unit, I/O, Networking, Elements of Programming Languages, Etc. | Basic Power Generation Concepts, Steam, Gas and Water Turbines, Transmission Line Models and Performance, Cable Performance, Insulation, etc |
| 6. Basic Electronics Engineering | 6. Power Electronics and Drives |
| Basics of Semiconductor Diodes and Transistors, Different Types of Transistor Amplifiers, Equivalent Circuits and Frequency Response, etc | Semiconductor Power Diodes, Transistors, Thyristors, Triacs, GTOs, Mosfets and IGBTS, Principles of Choppers and Inverters, |
IES Syllabus for Electronics and Telecommunications Engineering
| Paper-I | Paper-II |
| 1. Basic Electronics Engineering: | 1. Analog and Digital Communication Systems |
| Basics of Semiconductors; Diode/Transistor Basics and Characteristics, Diodes for Different Uses, Junction & Field Effect Transistors (BJTs, JFETs, MOSFETs), etc | Random Signals, Noise, Probability Theory, Information Theory, PCM, DPCM, Multiplexing-Audio/Video; Digital Modulation |
| 2. Basic Electrical Engineering | 2. Control Systems |
| DC Circuits-OHM’s & Kirchoff’s Laws, Mesh and Nodal Analysis, Circuit Theorems; Electromagnetism, Faraday’s & Lenz’s Laws | 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; |
| 3. Materials Science | 3. Computer Organization and Architecture |
| Electrical Engineering materials; Crystal Structure & Defects; Ceramic Materials-Structures, Composites, Processing and Uses, etc | Basic Architecture, CPU, I/O Organisation, Memory Organisation, Peripheral Devices, Trends; Hardware/Software Issues; Data Representation& Programming; Operating Systems-basics, Etc |
| 4. Electronic Measurements and Instrumentation | 4. Electro-magnetics |
| Principles of Measurement, Accuracy, precision and standards; Analog and Digital Systems for Measurement, Measurement Systems for Non-Electrical Quantities; Basics of Telemetry; Different Types of Transducers, etc | Elements of Vector Calculus, Maxwell’s Equations-basic Concepts; Gauss’, and Stokes’ Theorems; Wave Propagation Through Different Media; Transmission of Lines-different Types, etc |
| 5. Network Theory | 5. Advanced Electronics |
| Network Graphs & Matrices; Wye-Delta Transformation; Linear Constant Coefficient Differential Equations- Time-Domain Analysis of RLC Circuits, Etc | Vlsi Technology: Processing, Lithography, Interconnects, Packaging, Testing; VLSI Design: Principles, MUX/ROM/PLA-based Design, Moore & Mealy Circuit Design; Pipeline Concepts & Functions; |
| 6. Analog and Digital Circuits | 6. Advanced Communication |
| BJTs and FETs; Diode Circuits for different uses; Biasing & stability of BJT & JFET amplifier circuits; Analysis/Design of Amplifier- Single/Multi-stage; | Communication Networks: Principles /Practices /Technologies/Uses/OSI Model/Security; Basic Packet Multiplexed Streams/Scheduling; Cellular Networks, Types, Analysis, Protocols (TCP/TCPIP); Microwave & Satellite Communication |
IES 2023 Exam Pattern
Before proceeding with the IES syllabus, let us have a look at the exam pattern of this toughest exam in the world. The IES exam is conducted in three stages — Preliminary, Mains and Personality Test. To be qualified for the post, the candidate has to clear all three stages.
IES Preliminary
The first stage of the exam, also known as the preliminary exam consists of two papers — Paper-I and Paper-II. Both papers have objective-type questions. Paper-I, which carries 200 marks, covers questions on General Studies and Engineering Aptitude. The allotted time for the paper is 2 hours. Paper II covers a diverse range of topics from the Engineering discipline. The paper carries 300 marks and the time duration is 3 hours. The candidates who qualify the Stage-I are cleared for the next stage. The selection process is solely at the discretion of the evaluating authority.
IES Mains
The second stage of the IES exam, also known as the mains exam has two papers—Paper-I and Paper-II. Both the papers are conventional in nature which means that the questions asked are descriptive. The IES syllabus for both papers consists of topics from the Engineering branches mentioned above. Time management is crucial in this stage as the questions demand a great level of attention and detail. Each paper in this stage carries 300 marks to be covered in 3 hours.
IES Interview
The final stage of the exam known as personal interview carries 200 marks. The interview is conducted by the UPSC experts who test your subjective knowledge and aptitude for the post. Besides, the interviewers review your application on various parameters which include leadership, confidence, etc.
IES Salary
After qualifying for the IES exam, you will be positioned as Assistant Executive Engineer. Your position will increase with time and so will your salary. Since the 7th pay commission’s introduction, the salary for IES has increased.
These salaries are exclusive of the following:
| Level | Basic Pay Scale | Grade Pay |
Junior Level | INR 15,600- INR 39,100 | INR 5400 |
| Senior Level | INR 15,600 – INR 39,100 | INR 6600 |
| Junior Administrator Grade | INR 15,600 – INR 39,100 | INR 7600 |
| Senior Administrator Grade | INR 37400 – INR 67000 | INR 8700 |
| High Administrator Grade | INR 37400 – INR 67000 | INR 8700 |
| Cabinet Secretary Grade | INR 90,000 | – |
| Apex Scale | INR 80,000 | – |
- Dearness Allowance (125% of Basic Scale)
- House Rent Allowance (10-30% of Basic Scale) [Depending on location]
- Transport Allowance (15% of Basic Pay + Dearness Allowance)
- Deduction of Income Tax, Provident Fund, Professional Tax, Gratuity, and Central Government employees group insurance scheme.
FAQs
The IES subjects are mainly from four main Engineering branches, i.e.
-Mechanical Engineering
-Electrical Engineering
-Electronics and Telecommunication Engineering
-Civil Engineering
-General Studies & Engineering Aptitude
The syllabus for IES and GATE is quite similar in terms of the major subjects covered. But GATE mainly focuses on a wider range of Engineering subjects and interdisciplinary topics while the IES syllabus is limited to the four main Engineering Branches of Electrical, Mechanical, Civil, Electronics and Telecommunication Engineering along with General Studies and Engineering Aptitude.
There is no specific branch that one can choose for IES but there are five main Engineering branches that you need to study and these are: Civil Engineering, Electrical Engineering, Mechanical Engineering, Electronics and Telecommunication Engineering.
Though there are detailed eligibility requirements for IES, the basic general requirements are:
-The applicant must be a citizen of India, Nepal or Bhutan or Tibetan refugees can also apply for this exam.
-You must have completed a bachelor’s degree in Engineering from a recognized academic institution.
-The age limit for the IES exam is 21-30 years as on 1st January 2022.
Read the detailed eligibility criteria for IES at Indian Engineering Services (IES)!
The IES syllabus is crucial for the understanding of the exam. With a strategic study plan, you can ace the exam. If you need more assistance with any education and career-related queries, let Leverage Edu help you.
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