UPSC ESE Syllabus 2025 - Download ESE Prelims and Mains Syllabus PDF

UPSC ESE Syllabus 2025

Candidates should be aware of the UPSC ESE Syllabus 2025 before they start their preparation for the exam. Here, you will find the detailed syllabus of UPSC ESE Prelims and Mains exam 2025. There are four categories for which ESE will be conducted, namely Civil Engineering, Mechanical Engineering, Electrical Engineering, and Electronics and Telecommunication Engineering. Following is the detailed syllabus for the UPSC ESE 2025 Exam that the candidates must go through before applying for the UPSC exam. 

UPSC ESE Syllabus 2025 - General Studies and Engineering Aptitude

Given below are the topics that a candidate must prepare to ace the 'General Studies and Engineering Aptitude section of the UPSC ESE 2025 exam.

• Basics of Energy and Environment: Conservation, environmental pollution and degradation, Climate Change, Environmental impact assessment.

• General Principles of Design, Drawing, Importance of Safety.

• Basics of Project Management.

• Current issues of national and international importance relating to social, economic and industrial development.

• Engineering Mathematics and Numerical Analysis.

• Standards and Quality practices in production, construction, maintenance and services.

• 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.

• Engineering Aptitude covering Logical reasoning and Analytical ability.

• Basics of Material Science and Engineering.

Also Check: UPSC ESE Sample Papers and Question Papers

UPSC ESE Syllabus 2025 - Civil Engineering

Check out the syllabus for UPSC ESE Civil Engineering exam 2025. 

• Border Roads Engineering Service (Border Roads Organisation)

• Central Engineering Service (Central Public Works Department)

• Central Engineering Service (Ministry of Road Transport & Highways)

• Central Water Engineering Service (Central Water Commission)

• Indian Defence Service of Engineers (Military Engineer Services)

• Indian Ordnance Factories Service (IOFS)

• Indian Railway Service of Engineers

• Indian Railway Stores Service

• Survey of India Service

• P & T Building Works Service (DoT, Ministry of Communication & Information Technology)

• Military Engineer Services (QS & C)

Also Check: UPSC ESE Preparation Tips 2025 for Prelims, Mains and Interview Round

UPSC ESE Syllabus 2025 - Electronics and Telecommunication Engineering

Check out the important  topics for Electronic and Telecommunication Engineering category of UPSE ESE 2025:

• Central Power Engineering Service (Central Electricity Authority)

• Corps of Electronics and Mechanical Engineers (EME), Indian Army

• Indian Telecommunication Service

• Indian Supply Service (Directorate General of Supply and Disposals)

• Indian Railway Stores Service

• Indian Railway Service of Signal Engineers

• Defence Aeronautical Quality Assurance Service

• Indian Inspection Service (Directorate General of Supply and Disposals)

• Indian Ordnance Factories Service (IOFS)

• Indian Naval Stores Service (Indian Navy)

• Indian Naval Armament Service (Directorate of Naval Armament)

• Indian Radio Regulatory Service

UPSC ESE Syllabus for Electronics & Telecommunication Engineering Paper 1

• Basic Electronics Engineering - Basics of semiconductors, Diode/Transistor basics & characteristics, Diodes for different uses, Junction & Field Effect Transistors, Transistor amplifiers of different types, oscillators & other circuits, Basics of Integrated Circuits, Bipolar, MOS & CMOS ICs, Basics of linear ICs, operational amplifiers and their applications

• Basic Electrical Engineering - Mesh and nodal analysis, circuit theorems, Electro‐magnetism, Faraday’s & Lenz’s laws, induced EMF & its uses, Single‐phase AC circuits, Transformers, DC circuits‐Ohm’s & Kirchoff’s laws, efficiency, Basics‐DC machines, Electrical power sources & their uses, induction machines & synchronous machines

• Materials Science - Electrical Engineering materials, Crystal structure & defects, Ceramic materials‐structures, composites, processing & 26 uses, Insulating laminates for electronics, structures, properties & uses, Magnetic materials, basics, classification, ferrites, ferro/para‐magnetic materials & components, Nano materials‐basics, preparation, purification, sintering, nanoparticles & uses, Nano‐optical/magnetic/electronic materials & uses, Superconductivity, uses

• Electronic Measurements and Instrumentation - Principles of measurement, accuracy, precision and standards, Analog & Digital systems for measurement, measuring instruments for different applications, Static/dynamic characteristics of measurement systems, errors, statistical analysis & curve fitting, Different types of transducers & displays, Data acquisition system basics

• Network Theory - Network graphs & matrices, Wye‐Delta transformation, Linear constant coefficient differential equations, Solution of network equations using Laplace transforms, 2‐port network parameters, State equations for networks, Steady state sinusoidal analysis

• Analog and Digital Circuits - Small signal equivalent circuits of diodes, BJTS & FETs, Diode circuits for different uses, Biasing & stability of BJT & FET amplifier circuits, Analysis/design of amplifier, Feedback & uses, Active filters, timers, multipliers, wave shaping, A/D‐D/A converters, Boolean Algebra uses, Logic gates, Digital IC familESE, Combinatorial/sequential circuits, Basics of multiplexers, counters/registers/ memorESE /microprocessors, design & applications

UPSC ESE Syllabus for Electronics & Telecommunication Engineering Paper 2

• Analog and Digital Communication Systems - Random signals, noise, probability theory, information theory, Analog versus digital communication & applications, Digital communication basics, Digital modulation, Multiple access, Optical communication

• 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, stability analysis, steady state, transient & frequency response analysis, Design of control systems, compensators, elements of lead/lag compensation, PID & industrial controller

• Computer Organization and Architecture - Basic architecture, CPU, I/O organisation, memory organisation, peripheral devices, trends, Hardware/software issues, Data representation & Programming, Operating systems, Memory management, virtual memory, file systems, protection & security, Databases, different types, characteristics and design, Transactions & 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, 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, VLSI design, Pipeline concepts & functions, Design for testability, examples, DSP, Digital filters, Microprocessors & microcontrollers, basics, interrupts, DMA, instruction sets, interfacing, Controllers & uses, Embedded systems

• Advanced Communication Topics - Communication networks, Cellular networks, types, analysis, protocols, Microwave & satellite communication, Communication satellites, orbits, characteristics, systems, uses, Fibre‐optic communication systems, block schematics, link calculations, system design, etc

UPSC ESE 2025 Syllabus for Electrical Engineering

Check out the syllabus for the 'Electrical Engineering' Category of UPSC ESE 2025 exam.

• Central Electrical and Mechanical Engineering Service (Central Public Works Department).

• P & T Building Works Service (Department of Telecommunications (DOT), Ministry of Communications)

• Central Power Engineering Service

• Indian Supply Service (Directorate General of Supply and Disposals)

• Indian Railway Stores Service

• Corps of Electrical and Mechanical Engineers (EME), Indian Army

• Indian Defence Service of Engineers (Military Engineer Services)

• Indian Railway Service of Electrical Engineers

• Indian Ordnance Factories Service (IOFS)

• Indian Naval Armament Service (Directorate of Naval Armament)

• Indian Naval Stores Service (Indian Navy)

Also Read: UPSC ESE Exam Analysis 2025

Mechanical Engineering Syllabus - UPSC ESE 2025

Check out the syllabus for UPSC ESE (Mechanical Engineering) 2025:

• Border Roads Engineering Service (Border Roads Organisation)

• Central Electrical & Mechanical Engineering Service (Central Public Works Department)

• Indian Supply Service (Directorate General of Supply and Disposals)

• Indian Railway Stores Service

• Central Engineering Service (Ministry of Road Transport & Highways)

• Central Power Engineering Service (Central Electricity Authority)

• Indian Railway Service of Mechanical Engineers

• Indian Ordnance Factories Service (IOFS)

• Indian Naval Stores Service (Indian Navy)

• Indian Naval Armament Service (Directorate of Naval Armament)

• Central Water Engineering Service (Central Water Commission)

• Corps of Electrical and Mechanical Engineers (EME), Indian Army

• Defence Aeronautical Quality Assurance Service

• Indian Defence Service of Engineers (Military Engineer Services)

• Indian Inspection Service (Directorate General of Supply and Disposals)