GATE IN Syllabus, Exam Pattern, Eligibility, Important Dates

Only wrong MCQs are penalised. MSQs need the exact set of correct options for any credit. NAT answers are numbers you type in. Calculations are done on the virtual calculator built into the test.

Pairing

If IN is your main paper you may add BM, EC, EE, ME or RA.

Taken from the 2027 IN syllabus PDF. Compared with the 2026 syllabus, it adds IoT, basic AI applications in instrumentation and, in the maths section, backpropagation.

1. Engineering Mathematics

Matrices, rank, eigenvalues and tensors; calculus and vector theorems; ODEs and separable PDEs; complex variables and residues; probability and Bayes' theorem; numerical methods, regression and backpropagation for neural networks.

2. Electricity and Magnetism

Electrostatics, capacitance, Biot-Savart, Ampere and Faraday laws, inductance, dipoles, magnetic circuits and B-H curves, Maxwell's equations.

3. Electrical Circuits and Machines

Practical sources, transients, network theorems, AC power and resonance, filters with R, L and C, two-port parameters; single-phase transformers, PM synchronous machines, buck and boost converters, rectifiers, inverters, PWM, rotor position and current sensing.

4. Signals and Systems

Sampling, Fourier, Laplace and z-transforms, DFT and FFT, LTI systems, convolution and correlation, IIR and FIR filters.

5. Control Systems

Feedback, Bode, Routh, Nyquist and root locus, state space, time-delay systems; control valves, servo and stepper motors; P, PI, PID, cascade, feed forward and ratio control and tuning; lead-lag design; DCS and PLC basics.

6. Analog Electronics

Diodes, BJT and MOSFET circuits and frequency response, op-amp applications including instrumentation amplifiers, PLLs and oscillators; noise sources, interference, shielding and grounding; component selection and board testing.

7. Digital Electronics

Logic minimisation, IC families, sequential circuits and FSMs; analog front ends and ADC and DAC types and specifications; microcontrollers and embedded programming; data acquisition, virtual instrumentation, IoT and basic AI applications.

8. Measurements

Standards, errors and uncertainty; Wheatstone, Kelvin, Maxwell, Anderson, Schering and Wien bridges; power and energy measurement, probes, true RMS meters, instrument transformers, DSOs and spectrum analysers.

9. Sensors and Industrial Instrumentation

Resistive, capacitive, inductive, piezoelectric and Hall sensors with signal conditioning; transducers for displacement, force, vibration, pressure, flow, temperature, level, pH, conductivity and viscosity.

10. Communication and Optical Instrumentation

Analog and digital modulation, multiplexing, 4–20 mA transmitters, sensor networks; optical sources and detectors, interferometry, fibre optic sensing, NIR, UV-Vis and mass spectrometry.

All papers share the 15-mark General Aptitude section on language, numbers, reasoning and spatial skills.

GATE is open to students in the third year or beyond of a bachelor's degree and to anyone who has completed a government-approved degree in engineering, technology, architecture, science, commerce, arts or humanities. M.Sc and MCA students can take it in their first year. AMIE-type professional society candidates need to have finished Section A.

Age doesn't matter, and nor, for GATE itself, does your branch. Admission and job rules may say otherwise.

Applications were online only, on GOAPS, with a live photo captured during registration and a verified DigiLocker account recommended for Indian nationals. Edits to category, paper and exam cities are allowed until 21 October 2026, normally for ₹500 per paper.

With an IN score you can apply for M.Tech or PhD places at IITs and IISc (through COAP) and NITs (through CCMT). M.Tech students admitted on GATE at government-supported institutes are paid ₹12,400 a month.

The GATE site's PSU list includes companies such as BHEL, NPCIL, IOCL, ONGC, ECIL and SAIL. Whether one takes IN scores is stated in its yearly advertisement.

More than 300 cities host GATE 2027. You listed three cities, all in the zone of your first choice. If those are full, IIT Madras can send you somewhere else. Allotted cities are announced on 4 January 2027.

The GATE 2027 timetable, as IIT Madras has published it (dates may be revised):

Papers are held either 9:30 AM to 12:30 PM or 2:30 PM to 5:30 PM. IN's date and session are to be notified.

IIT Madras will post admit cards on GOAPS; no date yet. Take it along with the original ID document named in your application. Reach early: seating opens 40 minutes before the paper, and late logins are refused after 15 minutes.

The GATE 2027 result is due on 19 March 2027. A provisional key comes first and can be challenged for a fee. IN is a one-session paper, so the score out of 1000 is computed from raw marks. It's valid for three years. Scorecards cost ₹500 after the free download window and stop on 31 December 2027.

GATE fixes the General mark at mean plus one standard deviation, capped at 40 and floored at 25. IN's 2026 figure came close to that cap. Other categories get 90% (OBC-NCL/EWS) or two-thirds (SC/ST/PwD). Institutes and PSUs set their own, higher, cut-offs.

• Measurements and sensors are what make IN different from EE and EC. Learn every bridge and transducer listed.
• Control and signals overlap with EE and EC material, so standard books for those cover it well.
• Cover the 2027 additions: IoT, AI applications in instrumentation and backpropagation. Embedded systems and ADC specifications are also listed in detail.
• Don't leave MSQs or NATs blank; wrong answers there cost nothing.
• Do the IN papers from 2024, 2025 and 2026 on the official download page in full three-hour sittings.

• GATE 2027 portal, IIT Madras
• IN syllabus 2027
• Brochure (PDF)
• Key dates
• Previous year papers; IN 2026 paper
• GATE 2026 qualifying marks

Who sets the GATE IN paper in 2027?

IIT Madras is the organising institute.

What was the qualifying mark for IN in 2026?

39.8 for General, 35.8 for OBC-NCL/EWS and 26.5 for SC/ST/PwD.

Which papers can I take with IN?

BM, EC, EE, ME or RA.

Has the IN syllabus changed for 2027?

Yes. Among other changes, it adds IoT, basic AI applications in instrumentation and backpropagation for neural networks.

When is the result?

19 March 2027.