GATE CSE 2027 Exam Pattern and Marking Scheme

The GATE CSE 2027 paper is a 3-hour computer-based test with 65 questions worth 100 marks. General Aptitude carries 15 marks, Engineering Mathematics about 13 and the core computer science subjects about 72. Only MCQs carry negative marking; MSQ and NAT questions do not.

Key takeaways

• 65 questions, 100 marks, 3 hours, computer-based.
• 10 General Aptitude questions for 15 marks, plus 55 subject questions covering Engineering Mathematics (about 13 marks) and core CS (about 72 marks).
• Three question types: MCQ, MSQ and NAT. Every question carries 1 or 2 marks.
• Negative marking applies to MCQs only: minus 1/3 for a 1-mark question and minus 2/3 for a 2-mark question. MSQs give no partial credit.
• Recent papers have used 25 one-mark and 30 two-mark subject questions, so 2-mark questions carry 70 of the 100 marks.
• Programming questions use C.

GATE CSE 2027 exam pattern at a glance

This follows the official question paper pattern published on gate2027.iitm.ac.in, checked on 16–17 September 2026. Confirm the pattern and the syllabus on the official website before the exam. For the exam days and deadlines, see GATE 2027 exam dates.

How the 65 questions split

The official pattern fixes 10 General Aptitude questions and 55 subject questions. Within those, the split between 1-mark and 2-mark questions has been the same in every CS paper from 2021 to 2026. This is an observation from recent papers, not a published rule, but it is the structure you should train for.

Two numbers shape strategy:

• Two-mark questions carry 70 marks. Accuracy on longer, multi-step questions decides most of the score.
• You get 1.8 minutes per mark on average. 180 minutes for 100 marks works out to about 3.6 minutes for a 2-mark question and 1.8 for a 1-mark question. Treat that as a ceiling, since you also need time for a second pass.

Subject-wise marks in recent papers

The pattern fixes General Aptitude at 15 marks and Engineering Mathematics at about 13. How the remaining marks spread across CS subjects varies from year to year. The table below is a third-party analyst compilation (GO Classes, shifts combined or averaged). Analysts classify borderline questions differently, so individual figures can differ by 2–3 marks between sources.

Engineering and Discrete Mathematics together come to about 13 marks in each of these years, and General Aptitude to 15.

No single CS subject dominates. Every subject in the table falls between 5 and 12 marks, which is why skipping a whole subject is expensive. This article shows three years; the subject-wise weightage analysis goes further back, and the book analyses 27 years of GATE CS papers subject by subject and topic by topic.

The three question types

MCQ: multiple choice

One of four options is correct. A wrong answer costs a third of the question's marks. This is the only type where a wrong answer is worse than a blank.

MSQ: multiple select

One or more of four options are correct, and all four can be. You score only if you select exactly the correct set. There is no partial credit and no negative marking, so a single wrong tick turns a full-mark answer into zero.

NAT: numerical answer type

There are no options. You type a number using the on-screen virtual keypad. There is no negative marking, but there is also nothing to check your answer against, so units and rounding matter.

Each type needs its own decision rules. We cover them in detail, including when a guess is worth it, in MCQ, MSQ and NAT in GATE CSE.

Negative marking, with a worked score

Negative marking touches only MCQs, and the penalty works out so that a blind guess among four options is worth zero on average. For a 2-mark MCQ, a random pick is right one time in four (plus 2) and wrong three times in four (minus 2/3 each), which averages out to exactly zero. The 1-mark case works the same way.

Here is how a full score comes together. Suppose a candidate:

• answers 18 one-mark and 22 two-mark questions correctly: plus 62 marks;
• gets 4 one-mark MCQs wrong: minus 4/3;
• gets 5 two-mark MCQs wrong: minus 10/3;
• gets 6 MSQ or NAT questions wrong: no deduction;
• leaves 10 questions blank: no deduction.

The final score is 62 minus 4.67, which is 57.33. The nine wrong MCQs cost more than four and a half marks, while the six wrong MSQ and NAT answers cost nothing. That asymmetry is why MCQs need more care before you commit, and why MSQ and NAT questions should not be left blank at the end.

How many MCQ, MSQ and NAT questions to expect

The official pattern lists the three types. The counts below come from third-party paper analyses, so treat them as approximate.

• 2025: roughly 34 MCQ, 15 MSQ and 16 NAT (GeeksforGeeks analysis).
• 2026, Shift 2: 34 MCQ, 11 MSQ and 19 NAT reported by analysts, with NAT concentrated in 2-mark questions.

The practical reading: about half the questions are MCQs, and the other half, which carry no negative marking, are split between MSQ and NAT. Analysts described the 2026 papers as lengthy and calculation-intensive, so do not expect NAT to be a small side section.

How difficult the paper has been

Difficulty ratings for recent CS papers, as compiled from analyst reviews (CollegeDekho):

• 2021: moderate.
• 2022: moderate to difficult.
• 2023: moderate.
• 2024: moderate to difficult.
• 2025: easy to moderate, with Shift 1 rated harder.
• 2026: moderate to difficult, harder than 2025.

Across these years, Algorithms and Theory of Computation were most consistently rated difficult, Data Structures consistently moderate, and General Aptitude easy. These are opinions from paper reviews, not official ratings, but the trend is clear enough to plan around.

What the pattern means for your preparation

1. Treat General Aptitude as core. It carries 15 marks and analysts have consistently rated it easy. Our guide to GATE General Aptitude covers how to secure it.
2. Do not skip Engineering Mathematics. About 13 marks is more than any single CS subject in the table above.
3. Build accuracy on 2-mark questions. They carry 70 marks, and in the 2026 Shift 2 count most NAT questions were 2-mark questions.
4. Practise NAT without options. Solve previous-year numericals to a final number, with units, before looking at any key.
5. Learn concepts completely for MSQ. Partial understanding produces partially correct selections, and those score zero.
6. Read C code fluently. Programming questions use C, so trace pointers, recursion and operator precedence by hand.
7. Practise under the real marking scheme. Score every mock with the negative marking rules, not just a count of correct answers. The book's 10 full mock tests and 1,120 questions with worked solutions give you enough volume to make these habits automatic.

The pattern tells you how you will be tested; the syllabus tells you on what. Read what changed in the GATE CSE 2027 syllabus before you fix your topic list.