Previous year paper analysis · GATE

GATE 2025 Electronics and Communication (EC) paper analysis

By the PrepMatic team · Updated 9 Oct 2026 · 4 min read

The GATE 2025 Electronics and Communication Engineering (EC) paper was held on the afternoon of Saturday 15 February 2025, with 65 questions for 100 marks. We read the official paper and key and tallied every question by subject and type. Engineering Mathematics was the single biggest block at 15 marks, ahead of Networks, Signals and Systems and Analog Circuits at 13 each, and the General-category qualifying mark sat at the 25 floor.

Paper facts

The qualifying mark for General candidates is the mean plus standard deviation of all marks, but never below 25, so 25.0 means the formula produced a value at or under the floor. The GATE cut-off guide explains the rule.

Subject-wise tally

The official paper has no subject labels, so this is our own classification, accurate to about one question where topics overlap. We placed data converters under Digital Circuits and counted information theory and random processes under Communications.

Question types

Forty-one marks sat in MSQ and NAT questions. The official key also marks one General Aptitude question, Q8 (2 marks), as MTA, which the key's footnote defines as Marks To All.

What stood out (our reading)

• Mathematics was spread across many sub-topics. The ten questions covered matrix rank for given parameters, series convergence, a ball-drawing probability, stationary points of a cubic, a Cauchy-Euler differential equation, an integral bound for a bounded function, contour integrals on the unit circle, a dice-sum expectation, a least-squares distance and a joint probability table.
• Control Systems was small but dense. Six questions, three of them MSQ: a Nyquist plot, a root locus, a controller on a second-order plant, Routh counting of polynomial roots, a state-space system and a block-diagram-to-signal-flow-graph conversion.
• Analog Circuits was broad. Nine questions touched BJT small-signal gain and biasing, ideal op-amp statements, MOSFET amplifiers, a band-pass filter, a Zener-regulated BJT pair and two diode circuits.
• Digital included data converters. A weighted-resistor DAC and a 10-bit ADC with its SNR and data rate appeared alongside a majority gate, a full adder with an XOR and a timing-path question.
• Electromagnetics was all two-mark. Its four questions were a surface charge distribution, the field in a copper wire, power delivered through a transmission line and the current induced in a loop, and two were NATs.
• Communications mixed theory. It had the peak deviation of an FM signal, AWGN capacity against bandwidth, DSB-SC versus AM, a block-code distance, maximum-likelihood detection, a random process and entropy.
• Difficulty is our reading, not an official rating. The official qualifying mark sat on the floor of 25. We read the one-mark MCQs as direct concept checks, while the 2-mark questions in mathematics, analog circuits and electromagnetics needed longer set-ups.

What it means for GATE 2027 preparation

1. Do not skip mathematics. At 15 marks it matched the largest block. The 2027 pattern fixes Engineering Mathematics at 13 marks for EC.
2. Revise control, devices and electromagnetics as a set. Together they gave 25 marks from 14 questions.
3. Expect to verify options. Fourteen MSQs, including three each in Analog Circuits and Control, reward checking every statement.
4. Compare with 2026. The 2026 EC analysis had 9 marks of mathematics but 20 in Networks, Signals and Systems, so a single year is a weak predictor. GATE 2027 revised all syllabi; confirm topics in the ECE preparation guide.

Read the previous year papers guide for a pass-by-pass method.

Using the tally with PrepMatic

Use PrepMatic's free assessment (about 15 multiple-choice questions, no timer) to find which subjects need work first, then set your exam date and daily hours in the study plan to get a Today view and a roadmap by weeks and topics. Mocks can be focused on your weak subjects, and the results show subject-wise accuracy over time. For real EC questions, use the official paper linked below, because PrepMatic's practice questions are AI-generated.

Frequently asked questions

What was the GATE 2025 EC qualifying mark?

The official General-category qualifying mark was 25.0. The OBC-NCL and EWS mark was 22.5, and the SC, ST and PwD mark was 16.6.

How many MSQs were there in GATE 2025 EC?

There were 14 MSQs worth 21 marks, along with 39 MCQs (59 marks) and 12 NATs (20 marks), according to the official answer key.

Which GATE 2025 EC subject carried the most marks?

By our tally, Engineering Mathematics with 10 questions worth 15 marks, followed by Networks, Signals and Systems and Analog Circuits at 13 marks each.

Official sources

• EC question paper and answer key.
• GATE 2025 examination schedule and cut-off marks.
• GATE 2027 downloads page for all past papers.

Counts above are our own tally from the official paper and key. Confirm any figure you rely on against the official files. For the full exam guide, start from the GATE guide; more analyses are in the paper analysis index.

← All previous year paper analysis