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GATE Previous Year Question Papers PDF (2015–2026) with Answer Key

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GATE previous year question papers from 2015 to 2026 are free to download here, 390 papers across every code from AE to XL, with official answer keys for 2020 to 2026 and the answers marked inside the 2015 to 2019 PDFs. Every GATE paper has 65 questions for 100 marks in 3 hours, so the 2025 and 2026 papers are the closest match to GATE 2027 in February 2027.

GATE Previous Year Question Papers

Pick a year to see every GATE paper and key from that year, or open your paper (CS, ME, EE, DA and the rest) to see it across years.

Newest papersGATE 2026 Question Paper

38 papers

View 2026 papers

GATE Question Papers by Year

YearPapersAnswer key
GATE 202638 papersYesView papers
GATE 202538 papersYesView papers
GATE 202438 papersYesView papers
GATE 202329 papersYesView papers
GATE 202237 papersYesView papers
GATE 202148 papersYesView papers
GATE 202027 papersYesView papers
GATE 201926 papersNot availableView papers
GATE 201838 papersNot availableView papers
GATE 201740 papersNot availableView papers
GATE 20161 paperNot availableView papers
GATE 201530 papersNot availableView papers

GATE Question Papers by Subject

26 subjects. Search for yours.

GATE Paper at a Glance

Questions65 per paper: 10 General Aptitude and 55 subject questions
Marks and time100 marks (General Aptitude 15, subject 85), 3 hours
Question typesMCQ (one correct option), MSQ (one or more correct options) and NAT (type a number)
MarkingA wrong MCQ costs 1/3 mark (1-mark questions) or 2/3 mark (2-mark questions); no negative marks for MSQ or NAT
MediumEnglish only, computer-based
Papers on this page2015 to 2026: 390 question papers, official keys for 2020 to 2026, answers marked in the 2015 to 2019 PDFs
Next examGATE 2027: 6 to 7 February 2027

How the GATE Paper Changed (2015–2026)

  • 2015 to 2020: questions were MCQ or NAT only. The 2020 CS answer key has no MSQ at all.
  • 2021 onwards: MSQ questions (one or more correct options, no negative marks) appear. In the 2026 CS Session 1 paper, 24 of the 65 questions are MSQ.
  • New papers: Petroleum Engineering came in 2016, Statistics in 2019, Biomedical in 2020, ES and XH in 2021, GE and NM in 2022 and Data Science and AI (DA) in 2024, taking GATE to 30 papers.
  • GATE 2027: still 30 papers, but Textile (TF) becomes section XE9 of Engineering Sciences and Robotics and Automation (RA) is new. Use the 2026 TF paper for XE9 practice.

What a GATE Paper Looks Like

The GATE 2026 Computer Science and Information Technology paper (CS Session 1), set by IIT Guwahati, has 65 questions for 100 marks, all in English. Questions 1 to 10 are General Aptitude and questions 11 to 65 are CS. Each part has 1-mark and 2-mark questions, and the official key marks every question as MCQ, MSQ or NAT. These four questions are from that paper, with answers from the official key.

SectionQuestionsMarks
General Aptitude1–5 (1 mark each), 6–10 (2 marks each)15
CS, 1-mark questions11–35: 8 MCQ, 13 MSQ, 4 NAT25
CS, 2-mark questions36–65: 10 MCQ, 11 MSQ, 9 NAT60

Q1. Consider a knock-out Women's badminton singles tournament where there are no ties. The loser in each game is eliminated from the tournament. Every player plays until she is defeated or remains the last undefeated player. The last undefeated player is declared the winner of the tournament. If there are 64 players in the beginning of the tournament, how many games should be played in total to declare the winner of the tournament?

  1. 127
  2. 64
  3. 63
  4. 32

Answer: (3) 63

GATE 2026 CS Session 1, Q3 (General Aptitude) · official answer key

Q2. Which one of the following dependencies among the register operands of different instructions can cause a data hazard in a pipelined processor?

  1. Read-after-read
  2. Read-after-write
  3. Write-after-read
  4. Write-after-write

Answer: (2) Read-after-write

GATE 2026 CS Session 1, Q16 (1 mark) · official answer key

Q3. With respect to a TCP connection between a client and a server, which one of the following statements is true?

  1. The client and server use a two-way handshake mechanism before the start of data transmission
  2. The server cannot initiate closing of the connection before the client initiates closing of the connection
  3. The TCP connection is half-duplex
  4. The client and server can initiate closing of the connection at the same time

Answer: (4) The client and server can initiate closing of the connection at the same time

GATE 2026 CS Session 1, Q18 (1 mark) · official answer key

Q4. Consider the implementation of sliding window protocol over a lossless link, with a window size of W frames, where each frame is of size 1000 bits (including header). The bandwidth of the link is 100 kbps (1k = 10³) and the one-way propagation delay is 100 milliseconds. Assume that processing times at the sender and receiver are zero and the transmission time of acknowledgements is also zero. Which one of the following options gives the minimum size of W (in number of frames) required to achieve 100% link utilization?

  1. 10
  2. 21
  3. 20
  4. 11

Answer: (2) 21

GATE 2026 CS Session 1, Q45 (2 marks) · official answer key

In this paper 37 of the 65 questions are MSQ or NAT, so they carry no negative marks. NAT answers are checked against a range in the key, for example 4.24 to 4.26 for Q58.

How to Use GATE Previous Year Papers?

  • Sit for the full 3 hours. 65 questions in 180 minutes is about 2 minutes 45 seconds a question. Finish the 10 General Aptitude questions in about 15 minutes so the 2-mark subject questions get more time.
  • Never leave an MSQ or NAT blank. They have no negative marks. Only MCQs do: a blind guess on a 1-mark MCQ averages 0, and ruling out one option lifts it to about +0.11 mark.
  • Start with 2021 to 2026, because these papers have all three question types you will see in 2027. Use 2015 to 2020 papers for topic practice; they have no MSQ.
  • Check against the right key. Use the official key for 2020 to 2026. For 2015 to 2019, the answers are printed inside each PDF.
  • Plan for 6 February 2027. That is about 14 weeks away. One full paper a week, checked and revised, covers the last seven years of your paper code before the exam.
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GATE Previous Year Question Papers FAQs

How many questions are there in a GATE paper?
65 questions for 100 marks in 3 hours. General Aptitude has 10 questions for 15 marks and the subject part has 55 questions for 85 marks.
Is there negative marking in GATE?
Only for MCQs: 1/3 mark for a wrong 1-mark MCQ and 2/3 mark for a wrong 2-mark MCQ. MSQ and NAT questions have no negative marking.
Which GATE years have answer keys on this page?
Official answer keys are here for every paper from 2020 to 2026. The 2015, 2017, 2018 and 2019 papers have the answers marked inside the PDF, and 2016 has only the EC Set 3 paper.
When did MSQ questions start in GATE?
In GATE 2021. Papers from 2020 and earlier have only MCQ and NAT questions, so use the 2021 to 2026 papers to practise MSQs.
Why are there two GATE CS papers for some years?
CS was held in two sessions in 2021, 2024, 2025 and 2026, and each session had its own paper and key. Both sessions are listed on those year pages.
Is the GATE paper available in Hindi?
No. GATE is a computer-based test in English only.
What is new in GATE 2027?
GATE 2027 has 30 papers. Textile Engineering and Fibre Science becomes section XE9 of Engineering Sciences, and Robotics and Automation (RA) is a new paper with no past papers yet.
When is GATE 2027?
GATE 2027: 6 to 7 February 2027. See the GATE 2027 page for every date.
Official website: gate2027.iitm.ac.inIISc and IITs publishes notices, admit cards and results here
Visit

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