GATE IN Previous Year Papers 2023–2026: Section-wise, MCQ, MSQ and NAT

Four official IN papers, 220 subject questions, each read and assigned to a syllabus section with its type and marks from the final key. Two findings stand out. The instrumentation core — Measurements, Sensors and Optical — carried 22 or 23 marks every single year (23, 23, 23, 22), the steadiest block in the paper. And the paper has changed character: in 2023 most subject marks came from numerical-answer questions with no negative marking; by 2026 most came from negatively marked MCQs. That change matters more for exam strategy than any weightage table.

Official GATE IN papers and final keys 2023–2026; our counts.

How we counted: every subject question was read in the official paper and assigned to the one section it mainly tests, using the 2026 section boundaries; type and marks come from the official key. Thirty-three questions across four years could reasonably sit in two sections (a probability question that is also maths, a bridge that is also a sensor circuit), and several depend on figures the text extraction cannot read. Shifting those would move a section by a mark or two. Note that the 2027 syllabus moves some topics between sections, so 2027 section totals will not line up exactly with this table.

Three readings. Maths is 13 marks by rule and our count lands there in three of four years; in 2025 we count 14, because a binomial-probability 2-marker sat alongside the nine maths items (a classification call, not a change in the rule). The instrumentation core is steady (Measurements 8–13, Sensors 8–10, plus Optical), while Digital (5 → 12 → 8) and Communication/Optical (2 → 8) swing. And Machines has been only 2–4 marks a year — with three of its seven questions (a DC generator in 2023, induction motors in 2024 and 2025) on topics now outside the 2027 syllabus.

In 2023 almost two-thirds of the subject marks came from numerical answers — no negative marks, but no guessing either. By 2026 the negatively marked share had risen to 61% (our arithmetic: 52 of 85), and multiple-select questions had grown from one to six. A paper like 2026’s rewards careful elimination and punishes careless guessing; one like 2023’s rewarded calculation speed. Prepare for the 2026 shape: timed MCQ sets with the penalty applied, and MSQs treated as all-or-nothing.

Negative marking costs individuals more than the field: only about one to two per cent of appeared IN candidates ended with a negative total in any year, even as the negatively marked share of the paper nearly doubled. The damage is quieter — a handful of wrong MCQ guesses taking two or three marks off a total that sits close to the qualifying line, where one mark was worth about 13.7 points of score in 2026 (550 ÷ (79.87 − 39.8), our arithmetic with the official qualifying mark and topper average; the rate holds between the qualifying mark and the topper average, and scores are capped at 1,000).