Explore More

Zollege is here for to help you!!
Trending CollegesUpcoming Coming Exams
Need Counselling
Login / Register
GATE logo

GATE 2026 Instrumentation Engineering (IN) Syllabus: Important Topics, Pattern, Marking Scheme, Books

OverviewIN Syllabus▾
Application Process▾
Preparation Tips▾
Result▾
Question Papers▾
Cut OffCollege PredictorNewsQ&A
Sanghamitra Deb's profile photo

Sanghamitra Deb

Content Writer | Updated On - Aug 6, 2025

GATE Instrumentation Engineering syllabus consists of 9 subjects from the core area of Instrumental Engineering and two sections for general aptitude and Engineering Mathematics. In the GATE exam, Instrumentation Engineering core subjects will have the highest weightage (72%) followed by general Aptitude (15%) and Engineering Mathematics (13%). Download GATE Instrumentation Engineering Syllabus

Quick Links: 

GATE Syllabus 2026 GATE Preparation Tips 2026 GATE Mock Test

GATE Instrumentation Engineering Syllabus 2026

GATE Instrumentation Engineering paper is divided into two sections- the core Instrumentation Engineering subjects and General Aptitude. The detailed GATE Instrumentation Engineering Syllabus has been discussed below.

Instrumentation Engineering Subjects

GATE syllabus for instrumentation engineering comprises 10 key topics, including engineering mathematics. Engineering Mathematics is a common subject for all GATE papers. Tabulated below is the GATE Instrumentation Engineering Syllabus 2026 and the major topics covered under it.

Section 1: Engineering Mathematics
Linear Algebra:
  • Matrix algebra
  • Systems of linear equations
  • Consistency and rank
  • Eigen value and Eigen vectors
Calculus
  • Mean value theorems
  • Theorems of integral calculus
  • partial derivatives
  • maxima and minima
  • multiple integrals
  • Fourier series
  • vector identities, line, surface, and volume integrals
  • Stokes, Gauss, and Green’s theorems
Differential equations
  • First-order equation (linear and nonlinear)
  • Second-order linear differential equations with constant coefficients, Method of variation of parameters
  • Cauchy’s and Euler’s equations, Initial and boundary value problems
  • Solution of partial differential equations: variable separable method
Analysis of complex variables
  • Analytic functions
  • Cauchy’s integral theorem and integral formula
  • Taylor’s and Laurent’s series, residue theorem, solution of integrals
Probability and Statistics
  • Sampling theorems
  • Conditional probability
  • Mean, median, mode, standard deviation, and variance
  • Random variables: discrete and continuous distributions: normal, Poisson, and binomial distributions
Numerical Methods
  • Matrix inversion
  • Solutions of non-linear algebraic equations
  • Iterative methods for solving differential equations
  • Numerical integration, regression, and correlation analysis
Section 2: Electricity and Magnetism
-
  • Coulomb's Law of Electric Field Intensity
  • Electric Flux Density
  • Gauss's Law, Divergence, Reluctance, Magnetic circuits
  • Self and Mutual inductance of simple configurations.
  • The capacitance of simple configurations
  • Biot-Savart’s law, Ampere’s law, Curl, Faraday’s law, Lorentz force, Inductance
  • Magneto-motive force, Electric field, and potential due to point, line, plane, and spherical charge distributions
  • Effect of the dielectric medium
Section 3: Electrical Circuits and Machines
Voltage and current sources
  • Independent, dependent, ideal, and practical
  • v-i relationships of resistor, inductor, mutual inductance, and capacitor
  • Transient analysis of RLC circuits with dc-excitation
  • Kirchoff’s laws, mesh and nodal analysis, superposition, Thevenin, Norton, maximum power transfer, and reciprocity theorems
  • Peak-, average- and rms values of ac quantities
  • Apparent-, active- and reactive powers; phasor analysis, impedance, and admittance
  • series and parallel resonance, locus diagrams, the realization of basic filters with R, L, and C elements
  • Transient analysis of RLC circuits with AC excitation.
  • One-port and two-port networks, driving point impedance, and admittance, open-, and short-circuit parameters.
Single-phase transformer
  • Equivalent circuit, phasor diagram, open circuit, and short circuit tests, regulation, and efficiency
  • Three-phase induction motors: the principle of operation, types, performance, torque-speed characteristics, no-load and blocked rotor tests, equivalent circuit, starting and speed control
  • Types of losses and efficiency calculations of electric machines.
Section 4: Signals and Systems
-
  • Transfer function, the frequency response of first and second-order linear time-invariant systems, the impulse response of systems
  • Convolution, correlation Discrete time system: impulse response, frequency response, pulse transfer function
  •  DFT and FFT
  • Basics of IIR and FIR filters.
  • Periodic, aperiodic, and impulse signals
  • Laplace, Fourier, and z-transforms
Section 5: Control Systems
-
  • Time-delay systems
  • Mechanical, hydraulic, and pneumatic system components, synchro pair, servo, and stepper motors, servo valves
  • On-off, P, PI, PID, cascade, feedforward, and ratio controllers, tuning of PID controllers, and sizing of control valves.
  • Feedback principles, signal flow graphs, transient response, steady-state-errors
  • Bode plot, phase and gain margins, Routh and Nyquist criteria, root loci, design of lead, lag and lead-lag compensators, state-space representation of systems
Section 6: Analog Electronics
-
  • Applications of opamps: adder, subtractor, integrator, differentiator, difference amplifier, instrumentation amplifier
  • Precision rectifiers, active filters, oscillators, signal generators, voltage-controlled oscillators, and phase-locked loop, sources, and effects of noise and interference in electronic circuits.
  • Features and applications of the diode, Zener diode, BJT, and MOSFET
  • Small signal analysis of transistor circuits, feedback amplifiers.
  • Features of ideal and practical operational amplifiers.
Section 7: Digital Electronics
-
  • Basics of number systems, Embedded Systems: Microprocessor and microcontroller applications, memory and input-output interfacing
  • Foundation of data acquisition systems, basics of distributed control systems (DCS), and programmable logic controllers (PLC).
  • Arithmetic circuits, comparators, Schmitt triggers, multi-vibrators, sequential circuits, flip-flops, shift registers, timers, and counters
  • Sample-and-hold circuit, multiplexer, analog-to-digital (successive approximation, integrating, flash and sigma-delta), and digital-to-analog converters (weighted R, 2R ladder, and current steering logic)
  • Features of ADC and DAC (resolution, quantization, significant bits, conversion/settling time)
  • Combinational logic circuits, minimization of Boolean functions. IC families: TTL and CMOS.
Section 8: Measurements
-
  • SI units, standards (R, L, C, voltage, current, and frequency), systematic and random errors in measurement, expression of uncertainty - accuracy and precision, propagation of errors, linear and weighted regression
  • Bridges: Wheatstone, Kelvin, Megohm, Maxwell, Anderson, Schering, and Wien for measurement of R, L, C and frequency, Q-meter.
  • Measurement of voltage, current, and power in single and three-phase circuits; AC and DC probes.
  • True RMS meters, voltage, and current scaling, instrument transformers, timer/counter, time, phase and frequency measurements, digital voltmeter, digital millimeter.
  • Oscilloscope, shielding, and grounding.
Section 9: Sensors and Industrial Instrumentation
-
  • Resistive-, capacitive-, inductive-, piezoelectric-, Hall effect sensors and associated signal conditioning circuits
  • Transducers for industrial instrumentation: displacement (linear and angular), velocity, acceleration, force, torque, vibration, shock, pressure (including low pressure)
  • Flow (variable head, variable area, electromagnetic, ultrasonic, turbine, and open channel flow meters) temperature (thermocouple, bolometer, RTD (3/4 wire), thermistor, pyrometer, and semiconductor)
  • Liquid level, pH, conductivity, and viscosity measurement. 4-20 mA two-wire transmitters.
Section 10: Communication and Optical Instrumentation
-
  • Optical sources and detectors: LED, laser, photodiode, light-dependent resistor, square-law detectors, and their features
  • Interferometer: Applications in metrology
  • Basics of fiber optic sensing. UV-VIS spectrophotometers, Mass spectrometer.
  • Amplitude- and frequency modulation and demodulation
  • Shannon's sampling theorem, pulse code modulation
  • Time and frequency division multiplexing, amplitude-, phase-, frequency-, quadrature amplitude, pulse shift keying for digital modulation.

General Aptitude Syllabus 

GATE Instrumentation Engineering 2026 Syllabus also includes a General aptitude section with 15% weightage. Basically, the verbal ability (in the English language) and numerical ability (like reasoning) of the candidates are measured in this part. This is a general part that may cover the following topics:

Topic Sub Topics
Verbal capacity (verbal ability) Basic sentence construction, Verbal analogies, Word groups, Verbal deduction, Grammar
Numerical capacity (numerical ability) Computation of numbers, Reasoning, Estimation, Data interpretation

GATE Instrumentation Engineering 2026: Books

To prepare well for the GATE Instrumentation Engineering 2026 exam, candidates need to follow good resources for the same. Given below are some of the best books for GATE Instrumentation Engineering preparation.

Instrumentation Engineering subjects 

Below is a list of recommended books that one can refer to for the GATE Instrumentation Engineering 2026 exam, as per the syllabus:

Subject Book & Author/ publisher
Engineering Mathematics Higher engineering mathematics, B.S. Grewal
Electricity and Magnetism Electricity and Magnetism, S.Chand
Electrical Circuits and Machines Electrical Engineering, Pearson
Signals and Systems Signals and Systems, Alan & Hamid Nawab, Pearson
Control Systems Control Systems Engineering, D.P. Kothari
Analog Electronics Analog Electronics, J.B. Gupta
Digital Electronics Digital Electronics, Herbert Taub and Donald Shilling 
Measurements Electrical and electronic measurement, A.K. Sawhney
Sensors and Industrial Instrumentation Sensors and Industrial Instrumentation, S.Chand
Communication and Optical Instrumentation Communication and Optical Instrumentation, Kishore Kashyap

General Aptitude 

Below is a list of books recommended for GATE General Aptitude section:

Numerical Ability
Numerical Ability, (Logical Reasoning And Analytical Ability), ACE A New Approach to Reasoning, BS Sijwali, and Indu Sijwali
R Gupta’s General Intelligence and Reasoning Quantitative Aptitude for Competitive Exams, R S Aggarwal 
Verbal Ability
A Modern Approach to Verbal and Non-verbal Reasoning, Dr. R.S. Aggarwal General English for Competitive Exams, Dr. Rashmi Singh / Disha Publications
Objective General English, Arihant Publication Essential English for Competitive examinations, Dr. Rashmi Singh
People Also Ask: 

Ques: What will be the sectional weightage of GATE Instrumentation Engineering syllabus?
Ans: In GATE Instrumentation Engineering Syllabus, 15% weightage is given to the General Aptitude Section, 13% to Engineering Mathematics, and the remaining 72% to the core Instrumentation Engineering subjects.

Ques: Who is eligible for GATE instrumentation?​
Ans: Candidates studying in the third or higher years of their graduation in any Engineering course are eligible to appear for the GATE Instrumentation Engineering exam 2026. There is no age limit to apply for the GATE 2026.

Ques: How tough is GATE Instrumentation Engineering paper?
Ans: As per the students who had taken the exam in prior years, the GATE Instrumentation Engineering paper is generally of moderate difficulty level.

GATE Instrumentation Engineering 2026: Exam Pattern

GATE Instrumentation Engineering Exam Pattern 2026 is tabulated below.

Particular Details
Number of questions 65 questions
Marks 100 marks
Time allowed 3 hours
Type of questions MCQ and NAT
Marks per question 1 or 2 marks
Negative Marking
  • For 1- Mark MCQ, 1/3 mark will be deducted for one wrong answer
  • For 2 - Mark MCQ, 2/3 mark will be deducted for one wrong answer
  • No negative marking for MSQs and NATs
  • No partial marking for any question

Candidates can refer to the topic-wise weightage of the GATE Instrumentation Engineering Syllabus from the table below:

Subject Number of questions
Engineering Mathematics 7 questions
Electricity and Magnetism 6 questions
Electrical Circuits and Machines 3 questions
Signals and Systems 5 questions
Control Systems 4 questions
Analog Electronics 5 questions
Digital Electronics 5 questions
Measurements 8 questions
Sensors and Industrial Instrumentation 1 question
Communication and Optical Instrumentation 5 questions
General Aptitude 10 questions

Quick Links:

GATE Question Paper 2023 GATE Question Paper 2022 GATE Question Paper 2021
GATE Question Paper 2020 GATE Question Paper 2019 GATE Question Paper 2018

GATE Instrumentation Engineering Syllabus 2026: FAQs

Ques. Who conducts the exam for GATE Instrumentation Engineering 2026?

Ans. GATE Instrumentation Engineering 2026 will be conducted by the IISc Bangalore, together with the other 6 major IITs of India.

Ques. Will there be any negative marking in GATE Instrumentation Engineering paper?

Ans.  Yes, there will be negative markings for incorrect MCQs. For 1 mark MCQs, 1/3rd marks will be deducted and for 2 mark MCQs, 2/3rd marks will be deducted. For incorrect NAT questions, no negative marking will be there.

Ques. What are the core subjects of GATE Instrumentation Engineering 2026?

Ans. The core GATE Instrumentation Engineering syllabus 2026 includes subjects such as-

  • Electricity and Magnetism
  • Electrical Circuits and Machines
  • Signals and Systems
  • Control Systems
  • Analog Electronics
  • Digital Electronics
  • Measurements
  • Sensors and Industrial Instrumentation

Ques. Can a third-year engineering student apply for GATE Instrumentation Engineering 2026?

Ans. As per the GATE Eligibility Criteria to apply for GATE Instrumentation Engineering 2026, one should be studying the third year or above for engineering in any branch in an institution recognized by the AICTE or central government.

Ques. Is it possible to give GATE for two subjects, with GATE Instrumentation paper?

Ans. Yes, the candidates who are appearing for the GATE Instrumentation Engineering paper can also appear for any one of the following papers:

  • Biomedical Engineering,
  • Electronics and Communication Engineering,
  • Electrical Engineering
  • Mechanical Engineering

Ques. What is the structure of GATE Instrumentation Engineering 2026?

Ans. The GATE Instrumentation Engineering question paper 2026 includes 65 questions of 100 marks. The types of questions include MCQ (Multiple Choice Questions) and NAT (Numeric Answer Type) of 1 mark or 2 marks.

Ques. Which topic has the highest weightage in the GATE Instrumentation Engineering 2026 syllabus?

Ans. In GATE instrumentation Engineering Syllabus 2026,  72% of the questions would be related to core engineering subjects. However, when a topic-wise analysis is made, the general aptitude section, which is a non-engineering topic, has the highest, 15% share out of the total questions.

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

Ask your question

Answered Questions

a

What are the eligibility criteria for different engineering programs?

ZT

Zollege Team

08 Apr 24

For the UG Engineering courses, candidates need to have 10+2 with 45% for the general category. However, the aggregate percentage will be 40% for SC/ST/OBC. For the PG Engineering courses, candidates need to have graduation with 50% and 45% for the SC/ST/OBC.

...Show More
a

What is the fee structure for b.tech computer science and engineering at VIT University?

ZT

Zollege Team

11 Mar 24

The Fee for the B.Tech Computer Science and Engineering at VIT University is INR 1.73 Lakhs with an INR 3k caution deposit which is refundable and a One-time payment only.

...Show More
a

What interdisciplinary research opportunities are available for graduate students at PRSU?

R

Rency

06 Mar 24

Pt. Ravishankar Shukla University (PRSU) in Raipur, Chhattisgarh offers a variety of interdisciplinary research opportunities, including:

  • Interdepartmental linkage

    Research opportunities include herbal drug technology, university industry, and centers for cognitive, translational, nano-science, and geriatrics.

  • School of Regional Studies and Research

    Research opportunities include rural development, anthropology, sociology, psychology, economics, geography, history, linguistics, literature, medical science, home science, social work, education, agriculture, and management.

  • School of Studies in Environmental Science

    Research opportunities include renewable energy, water pollution, soil pollution, heavy metal pollution, air quality monitoring, and analysis.

  • School of Studies in Biotechnology

    Research opportunities include bioprocess engineering, fungal biotechnology, bio-fuel technology, environmental biotechnology, and plant physiology.

  • Center for Basic Sciences (CBS)

    Research opportunities include Inspire Internship Camps, which attract talented youth to take up research by working with scientists like Nobel Prize Winners.

...Show More

top courses

Also Check

Subscribe To Our News Letter

Get Latest Notification Of Colleges, Exams and News

Select Course

Top Colleges

M.B.A
b.tech/b.e
MCA
BCA
m.tech
MA
BA

Top Universities

engineering
management
medical
law
commerce
science
arts

Top Exam

CAT
GATE
JEE-MAIN
NEET
XAT
CLAT
MAT

Top Cities

bangalore
lucknow
indore
delhi
mumbai
kolkata

Top States

uttar pradesh
tamil nadu
karnataka
west bengal
kerela
maharastra
contact us
terms & conditions
Privacy & Policy
© 2026 Patronum Web Private Limited