IAE Academy
GATE28 Sep 2026 · 6 min read

Where GATE IN's marks have come from

Based on IAE's count of past papers. What it cannot tell you is at the end.

A subject-by-subject count of where GATE Instrumentation Engineering's 85-mark subject component has gone across the seven papers of 2018, 2020 and 2022–2026. The counts, not a forecast, are turned into an order.

IAE Academy

Resource Centre

This post counts marks. For a candidate preparing for GATE IN (Instrumentation Engineering) and deciding what to work on first, it sets out where the paper's 85-mark subject component has come from, subject by subject, across the seven GATE IN papers that IAE's study library has solved: 2018, 2020, 2022, 2023, 2024, 2025 and 2026. The GATE 2027 Information Brochure fixes the paper at 65 questions and 100 marks, of which General Aptitude is 15 marks with its own common syllabus, sitting outside the 85-mark subject component that Engineering Mathematics and the remaining IN subjects make up between them.

Where GATE IN's 85 subject marks have come from, paper by paper

Marks per GATE IN paper under each published study subject, seven papers: 2018, 2020, 2022–2026, with the average per paper

Marks per GATE IN paper under each published study subject, seven papers: 2018, 2020, 2022–2026, with the average per paper
Subject2018202020222023202420252026Average per paper
Engineering Mathematics1315131515141314.0
Networks (Electric Circuits)912159816710.9
Analog Electronics10111210153910.0
Control Systems11131299869.7
Signals and Systems9868111198.9
Digital Electronics1187951088.3
Electrical and Electronic Measurements88669787.4
Electromagnetics24454454.0
Electrical Machines00134231.9
Not in a library subject yet1269115101710.0
Subject component (fixed by the brochure)8585858585858585

Source: the official GATE IN papers and answer keys for 2018, 2020 and 2022–2026. 2019 and 2021 are left out: the copies IAE hosts are image scans without the answer key. We placed each question under a subject ourselves; the exam paper does not label subjects. These are counts of past papers, not a forecast. The 85-mark subject component is from the GATE 2027 Information Brochure (printed page 4). Data as of 27 Sep 2026.

Each row is a subject as we placed the questions; the exam paper does not label subjects. Each column is one past paper, not a prediction for any future one. Read across a row and the year-to-year range is wide: Networks ran from 7 marks in 2026 to 16 in 2025, and Analog Electronics from 3 marks in 2025 to 15 in 2024. The Engineering Mathematics row needs one caveat: the marks we placed under this subject run 13–15 per paper against the brochure's fixed 13, because we placed each question ourselves and did not follow the paper's own section boundaries. The same applies to every other row. The 'Not in a library subject yet' row is marks on questions that are not under any published subject. That can include questions from a section the library already covers, as well as sections it does not cover yet, and the two are not separated in this row. The last row is the brochure's fixed 85-mark subject component; the rows above add up to it in every year.

GATE IN subjects in order of average marks per paper

Published study subjects for GATE IN, ordered by average marks per paper across the seven papers

Published study subjects for GATE IN, ordered by average marks per paper across the seven papers
OrderSubjectAverage marks per paperLowest–highest in one paperPapers it appeared in (of 7)
1Engineering Mathematics14.013–157
2Networks (Electric Circuits)10.97–167
3Analog Electronics10.03–157
4Control Systems9.76–137
5Signals and Systems8.96–117
6Digital Electronics8.35–117
7Electrical and Electronic Measurements7.46–97
8Electromagnetics4.02–57
9Electrical Machines1.90–45

Source: Computed from the table above. General Aptitude is not in this list: it is a fixed 15 marks outside the 85-mark subject component, with its own common syllabus. Data as of 27 Sep 2026. Subjects with the same average (to one decimal place) share a place, marked =.

By average marks per paper across the seven papers, the order runs Engineering Mathematics (14.0), Networks (10.9), Analog Electronics (10.0), Control Systems (9.7), Signals and Systems (8.9), Digital Electronics (8.3), Electrical and Electronic Measurements (7.4), Electromagnetics (4.0), and Electrical Machines (1.9). None of these nine averages tie to one decimal place, so the order above has no shared places. A plan that follows the marks would take Engineering Mathematics, Networks and Analog Electronics first, the three subjects that each averaged 10 or more marks a paper, before moving down the list. Electrical Machines sits last on the average and also appeared in only five of the seven papers, carrying no marks at all in 2018 or 2020. General Aptitude does not appear in this list: it is a fixed 15 marks outside the 85-mark subject component, with its own common syllabus, so it is counted separately rather than ranked against these nine.

The GATE IN syllabus, section by section, against the study library

Sections of the official GATE 2027 IN syllabus and the IAE study subjects that cover them

Sections of the official GATE 2027 IN syllabus and the IAE study subjects that cover them
Syllabus sectionTitleStudy library subject
Section 1Engineering MathematicsEngineering Mathematics
Section 2Electricity and MagnetismElectromagnetics
Section 3Electrical Circuits and MachinesNetworks (Electric Circuits), Electrical Machines
Section 4Signals and SystemsSignals and Systems
Section 5Control SystemsControl Systems
Section 6Analog ElectronicsAnalog Electronics
Section 7Digital ElectronicsDigital Electronics
Section 8MeasurementsElectrical and Electronic Measurements
Section 9Sensors and Industrial InstrumentationNot in the library yet
Section 10Communication and Optical InstrumentationNot in the library yet

Source: official GATE 2027 IN syllabus PDF (IIT Madras), 27 Sep 2026. Subjects are those in IAE's study library.

The official GATE 2027 IN syllabus prints ten sections. Eight are matched to a published study subject above; two are not: Sensors and Industrial Instrumentation, and Communication and Optical Instrumentation. These are real marks in the paper: the subject component's 85 marks include whatever these two sections have contributed in each of the seven papers. The study library has not solved their questions yet, so they have no subject page.

WHAT THIS CANNOT TELL YOU

What this cannot tell a reader. It draws on seven GATE IN papers only: 2018, 2020, 2022, 2023, 2024, 2025 and 2026. 2019 and 2021 are left out because the copies IAE hosts are image scans without the answer key. We placed each question under a subject ourselves; the exam paper does not label subjects. The 'Not in a library subject yet' marks in the first table are unsolved sections plus any question from a covered section that we did not place. This post does not say which. These are counts of marks in past papers, not a forecast of any future one, GATE 2027 included.

Data as of 27 Sep 2026.

Common questions

How many marks does Engineering Mathematics carry in a GATE IN paper?+
The way we placed the questions, 13 to 15 marks per paper across the seven papers (2018, 2020 and 2022–2026), averaging 14.0. The GATE 2027 Information Brochure fixes Engineering Mathematics at 13 marks. The difference comes from how we placed each question: by topic, not by the paper's section boundaries.
Which GATE IN subject has averaged the most marks per paper?+
Engineering Mathematics, at 14.0 marks per paper across the seven papers, followed by Networks (Electric Circuits) at 10.9 and Analog Electronics at 10.0.
Are Sensors and Industrial Instrumentation, or Communication and Optical Instrumentation, covered in the study library?+
Not yet. These are two of the ten sections in the official GATE 2027 IN syllabus, and the study library has not solved questions from either section yet.
Why are 2019 and 2021 GATE IN papers left out of this count?+
The copies IAE hosts for those years are image scans without the answer key, so their questions are not solved here. Only the seven papers of 2018, 2020 and 2022–2026 are counted.

IAE Academy

Resource Centre