UPSC ESE ET Syllabus 2027: Electronics & Telecommunication Syllabus
Riya Sharma18 Sept, 2026
UPSC ESE ET Syllabus 2027: The Union Public Service Commission (UPSC) has released the UPSC ESE 2027 notification for Electronics and Telecommunication Engineering aspirants. The UPSC ESE 2027 Preliminary Examination will be conducted on January 31, 2027, followed by the Main Examination on June 18, 2027. Candidates preparing for the Electronics and Telecommunication Engineering discipline should cover the complete UPSC ESE Syllabus 2027 along with the branch-specific topics.
UPSC ESE ET Syllabus 2027
The UPSC ESE 2027 ET Syllabus covers General Studies and Engineering Aptitude in Preliminary Paper I and Electronics & Telecommunication Engineering in Paper II. The Main Examination consists of two conventional papers in the same engineering discipline, followed by the Personality Test/Interview.
The UPSC ESE Electronics and Telecommunication Engineering Syllabus 2027 includes topics from electronics, electrical engineering, materials science, instrumentation, network theory, analog and digital circuits, communication systems, control systems, computer organization, electromagnetics, advanced electronics and advanced communication. Candidates should prepare the syllabus systematically for both objective and conventional papers.
UPSC ESE Electronics and Telecommunication Engineering Syllabus 2027
The UPSC ESE Electronics and Telecommunication Engineering Syllabus 2027 is divided into two engineering papers for the Preliminary Examination. Paper I covers six core topics, while Paper II covers six advanced topics.
Paper I includes: Basic Electronics Engineering, Basic Electrical Engineering, Materials Science, Electronic Measurements and Instrumentation, Network Theory, and Analog and Digital Circuits.
Paper II includes: Analog and Digital Communication Systems, Control Systems, Computer Organization and Architecture, Electro Magnetics, Advanced Electronics Topics, and Advanced Communication Topics.
What is the UPSC ESE ET Exam 2027?
The UPSC ESE ET Exam 2027 is conducted by the Union Public Service Commission for candidates seeking admission to the Engineering Services Examination in the Electronics and Telecommunication Engineering category. Electronics & Telecommunication Engineering is listed as Category IV in the UPSC ESE 2027 notification.
The examination is conducted in three stages: Preliminary Examination, Main Examination, and Personality Test/Interview. Candidates can apply for only one engineering category in the examination.
UPSC ESE ET Syllabus 2027 for General Studies and Engineering Aptitude
General Studies and Engineering Aptitude is common to all engineering disciplines in the UPSC ESE Preliminary Examination. Paper I carries 200 marks and includes questions from all 10 topics prescribed by UPSC.
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UPSC ESE ET Syllabus 2027 for General Studies and Engineering Aptitude |
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| Topics | Sub-topics |
| General Studies and Engineering Aptitude |
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Questions from all 10 topics are included in the General Studies and Engineering Aptitude paper. The marks assigned to each topic may range from 5% to 15% of the total marks in the paper.
UPSC ESE ET Syllabus 2027 for Paper 1
The UPSC ESE ET Syllabus 2027 for Paper 1 covers six areas: Basic Electronics Engineering, Basic Electrical Engineering, Materials Science, Electronic Measurements and Instrumentation, Network Theory, and Analog and Digital Circuits.
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UPSC ESE ET Syllabus 2027 for Paper 1 |
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| Topics | Subtopics |
| Basic Electronics Engineering | Basics of semiconductors; diode and transistor basics and characteristics; diodes for different uses; junction and field effect transistors including BJTs, JFETs and MOSFETs; transistor amplifiers; oscillators and other circuits; basics of integrated circuits; bipolar, MOS and CMOS ICs; linear ICs; operational amplifiers and their linear and non-linear applications; optical sources and detectors; basics of opto-electronics and their applications. |
| Basic Electrical Engineering | DC circuits including Ohm's and Kirchhoff's laws, mesh and nodal analysis and circuit theorems; electromagnetism; Faraday's and Lenz's laws; induced EMF and its uses; single-phase AC circuits; transformers and efficiency; basics of DC machines, induction machines and synchronous machines; electrical power sources including hydroelectric, thermal, nuclear, wind and solar; basics of batteries and their uses. |
| Materials Science | Electrical engineering materials; crystal structure and defects; ceramic materials, structures, composites, processing and uses; insulating laminates for electronics; magnetic materials, classification, ferrites, ferro/paramagnetic materials and components; nanomaterials, preparation, purification, sintering, nanoparticles and uses; nano-optical, magnetic and electronic materials; superconductivity and its uses. |
| Electronic Measurements and Instrumentation | Principles of measurement, accuracy, precision and standards; analog and digital measurement systems; measuring instruments for different applications; static and 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 and matrices; Wye-Delta transformation; linear constant coefficient differential equations; time-domain analysis of RLC circuits; solution of network equations using Laplace transforms; frequency-domain analysis of RLC circuits; two-port network parameters; driving-point and 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; biasing and stability of BJT and JFET amplifier circuits; analysis and design of single and multi-stage amplifiers; feedback and its uses; active filters, timers, multipliers and wave shaping; A/D and D/A converters; Boolean algebra; logic gates; digital IC families; combinatorial and sequential circuits; multiplexers, counters, registers, memories and microprocessors, including their design and applications. |
UPSC ESE ET Syllabus 2027 for Paper 2
The UPSC ESE ET Syllabus 2027 for Paper 2 includes Analog and Digital Communication Systems, Control Systems, Computer Organization and Architecture, Electro Magnetics, Advanced Electronics Topics, and Advanced Communication Topics.
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UPSC ESE ET Syllabus 2027 for Paper 2 |
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| Topics | Subtopics |
| Analog and Digital Communication Systems | Random signals, noise, probability theory and information theory; analog versus digital communication and applications; AM and FM systems; transmitters and receivers; theory, practice and standards; SNR comparison; digital communication basics including sampling, quantizing, coding, PCM and DPCM; audio/video multiplexing; digital modulation including ASK, FSK and PSK; multiple access including TDMA, FDMA and CDMA; optical communication and fibre optics. |
| Control Systems | Classification of signals and systems; applications of signal and system theory; system realization; transforms and their applications; signal flow graphs; Routh-Hurwitz criteria; root loci; Nyquist and Bode plots; feedback systems; open and closed loop systems; stability analysis; steady-state, transient and frequency response analysis; control system design; compensators; lead and lag compensation; PID and industrial controllers. |
| Computer Organization and Architecture | Basic architecture; CPU; I/O organization; memory organization; peripheral devices; hardware and software issues; data representation and programming; operating systems, processes and applications; memory management; virtual memory; file systems; protection and security; databases and their types, characteristics and design; transactions and concurrency control; elements of programming languages. |
| Electro Magnetics | Elements of vector calculus; Maxwell's equations; Gauss' and Stokes' theorems; wave propagation through different media; transmission lines, types and basics; Smith's chart; impedance matching and transformation; S-parameters; pulse excitation; waveguides; rectangular waveguides, modes, cut-off frequency and dispersion; dielectric types; antennas, radiation pattern, monopoles, dipoles, gain and arrays. |
| Advanced Electronics Topics | VLSI technology including processing, lithography, interconnects, packaging and testing; VLSI design principles; MUX, ROM and PLA-based design; Moore and Mealy circuit design; pipeline concepts and functions; design for testability; digital signal processing; discrete-time signals and systems; digital filters including FIR and IIR types and design; speech, audio and radar signal processing applications; microprocessors and microcontrollers; interrupts, DMA, instruction sets and interfacing; controllers and embedded systems. |
| Advanced Communication Topics | Communication networks, principles, technologies and applications; OSI model and security; packet multiplexed streams and scheduling; cellular networks, types, analysis and protocols including TCP/TCP-IP; microwave and satellite communication; terrestrial and space-based line-of-sight systems; block schematics, link calculations and system design; communication satellites, orbits, characteristics, systems and uses; fibre-optic communication systems, block schematics, link calculations and system design. |
UPSC ESE ET Exam Pattern 2027
Understanding the UPSC ESE ET Exam Pattern 2027 is important for planning preparation. The examination consists of Preliminary, Main and Personality Test/Interview stages. The Preliminary Examination carries 500 marks, the Main Examination carries 600 marks and the Personality Test/Interview carries 200 marks.
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UPSC ESE ET Exam Pattern 2027 |
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| Stage | Paper | Marks & Duration |
| Stage I: Preliminary Examination | Paper I: General Studies and Engineering Aptitude | 200 Marks, 2 Hours |
| Paper II: Electronics & Telecommunication Engineering | 300 Marks, 3 Hours | |
| Stage II: Main Examination | Paper I: Electronics & Telecommunication Engineering | 300 Marks, 3 Hours |
| Paper II: Electronics & Telecommunication Engineering | 300 Marks, 3 Hours | |
| Stage III | Personality Test/Interview | 200 Marks |
The Preliminary Examination consists of objective-type papers, while the Main Examination consists of conventional-type papers. There is negative marking for wrong answers in the objective-type papers.
UPSC ESE ET Syllabus 2027 PDF
Candidates can refer to the official UPSC ESE 2027 notification for the complete Electronics and Telecommunication Engineering syllabus. The official notification contains the syllabus for General Studies and Engineering Aptitude as well as Electronics & Telecommunication Engineering for the Preliminary and Main Examination.
UPSC ESE 2027 Notification PDF Download
UPSC ESE ET Syllabus 2027 Preparation Tips
Understand the UPSC ESE ET Syllabus: Start by covering the complete UPSC ESE Electronics and Telecommunication Engineering Syllabus 2027 and divide the topics into manageable study blocks.
Create a Structured Study Plan: Prepare a study plan covering both General Studies and Engineering Aptitude and the technical Electronics and Telecommunication subjects.
Focus on Core Engineering Concepts: Build strong fundamentals in network theory, electronics, communication systems, control systems, electromagnetics and other topics mentioned in the official syllabus.
Practise Previous Year Questions: Solve previous year UPSC ESE questions to understand the question pattern and identify topics that require additional revision.
Prepare for Both Prelims and Mains: Since Prelims is objective and Mains is conventional, practise objective questions as well as descriptive and numerical questions during preparation.
Use Reliable Study Resources: Candidates can explore structured preparation resources and UPSC ESE Online Courses by PW for study material, mock tests and other preparation resources.
UPSC ESE ET Syllabus 2027 vs GATE ECE Syllabus 2027
The UPSC ESE ET Syllabus 2027 and GATE ECE Syllabus 2027 cover several electronics and communication fundamentals, but the examinations have different structures and objectives.
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UPSC ESE ET Syllabus 2027 vs GATE ECE Syllabus 2027 |
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| UPSC ESE Syllabus for ET | GATE Syllabus for ECE |
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Prepare for the UPSC ESE 2027 examination with structured study material, mock tests and other resources through UPSC ESE Online Coaching by PW.
UPSC ESE ET Syllabus 2026 FAQs
Q1. What is the UPSC ESE ET Syllabus 2027?
Q2. What are the subjects included in the UPSC ESE ECE Syllabus 2027?
Q3. What is the UPSC ESE ET Exam Pattern 2027?
Q4. Where can I download the UPSC ESE ET Syllabus 2027 PDF?
Q5. How should I prepare for the UPSC ESE Electronics and Telecommunication Syllabus 2027?
