GATE CSE Previous Year Question Papers with Answer Key: (OUT), Check Official and Memory-Based Question Paper Answer Key

Graduate Aptitude Test in Engineering 2027 ( GATE )

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GATE 2027 Application Form Release Date

27 Aug '26

UPASANA
UPASANA PRADHAN
Assistant Manager- Editorial
Updated on Mar 20, 2025 15:42 IST
GATE CSE Previous Year Question Papers are important to sharpen the GATE preparation for the GATE applicants. Candidates who are willing to appear in GATE 2025 exam must solve the GATE computer Science Engineering papers of last few years to sharpen the prep. Candidates can check here GATE CSE PYQs, Solution PDFs, section-wise weightage and more;

IIT Roorkee has released the GATE 2025 CS question paper on the official website. Candidates can access the GATE 2025 CSE master question paper answer key using their credentials. The GATE 2025 CS exam was held on Feb 1 in two sessions: Morning (9:30 AM to 12:30 pm) and Afternoon (2:30 pm to 5:30 pm).

Aspirants can download the GATE 2025 CS1 and CS2 question papers below. GATE CSE Previous Year Question Papers are necessary to sharpen the GATE 2025 preparation for the GATE applicants. Candidates can check here GATE CSE PYQs, Solution PDFs, section-wise weightage and more;

GATE CSE PYQs

GATE CSE previous Year Question Papers

GATE CS PYQs: Computer Science and Information Technology paper PYQs can be checked here. Candidates can download the question paper and practice for the exam for free. The question papers will get to secure a good rank in GATE.  The GATE CS1 paper was held on February 1, 2025 (9:30 to 12:30 pm), and the CS2 paper was conducted on February 1, 2025, in the afternoon session (2:30 pm to 5:30 pm). The paper was easy to moderate with a balanced set of questions. The GATE 2025 CS1 and CS2 memory-based question paper answer key is now available. GATE 2025 CS results are announced on March 19 along with GATE CS cutoff scores. 

Last year, in GATE 2024, more than 1.5 Lakh applicants registered for only CS & IT papers out of 8.5 Lakh applicants in all 30 papers. This data shows the popularity of the GATE CSE paper amongst the applicants. With more candidates, the competition level is reasonably high for the GATE CS & IT paper, which requires thorough preparation to clear the exam with a good rank. GATE CS previous year papers are one of the most important tools that can help you ace the GATE exam in multiple ways.

IIT Roorkee has released the GATE admit card and announced the GATE 2025 exam schedule. The GATE exam was conducted in two sessions on February 1, 2, 15, and 16, 2025. Candidates must check GATE CSE books, syllabus, and pattern before filling out the GATE application form. Shiksha brings GATE CS1 and CS2 PYQs (Previous year question papers), solutions, topic-wise weightage and more for all gate aspirants. Candidates can find below all the required details;

Table of contents
  • Important Links Related to GATE Exam
  • GATE Computer Science and Information Technology (CS & IT) Previous Year Question Papers
  • How To Use GATE CS & IT Previous Year Question Papers in your GATE 2025 Preparation
  • GATE Exam Pattern: Check Brief Exam Pattern

Important Links Related to GATE Exam

Important Links For GATE 
GATE Books GATE Syllabus
GATE Preparation GATE Important Dates
Q&A Icon
Commonly asked questions
Q:   When will GATE 2026 exam be conducted?
A: 

The GATE 2026 exam will be held on February 7,8, 14, and 15 in two shifts. The GATE 2026 official website is launched - gate2026.iitg.ac.in. The information brochure is available on the website. The GATE MTech entrance exam 2026 will be held on different dates in two shifts- forenoon and afternoon. Registrations for GATE 2026 started on August 28. 

Q:   Where can I download the GATE 2026 Syllabus?
A: 

Candidates can download the GATE 2026 syllabus on the official website. The syllabus is available for different subjects/disciplines. The steps to download the GATE syllabus 2026 can be checked below -

  • Visit the official website
  • Click on the GATE papers section
  • Select the syllabus link
  • Choose your desired paper and download PDF
Q:   Can you suggest some good books for the preparation of GATE for CSE?
A: 

Those candidates who are preparing for the GATE Computer Science Engineering paper should refer to the best GATE Computer Science Engineering books 2025 so that their chances of cracking the entrance exam increase. It is important to choose a good book in the preparation journey, and simultaneously, the right strategy also matters. Here, we have listed some books for CSE that may help students in their preparation. Engineering Mathematics:

  • Advanced Engineering Mathematics by Erwin Kreyszig, Discrete Mathematics and Its Applications by Kenneth Rosen.\
  • Theory of Computation: An Introduction to Formal Languages and Automata by Peter Linz
  • Computer organisation & Architecture: Computer Architecture A Quantitative Approach by Hennessy and Patterson and
  • Computer organisation and Embedded systems by Carl Hamacher.
  • Programming & Data Structures: Classic Data Structures by Debasis Samanta
  • The C Programming language by Dennis Richie. Digital Logic: Digital Electronics by S. Salivahanan & S. Arivazhagan and Digital Design by Morris Mano.
  • Computer Networks: Computer Networks by Peterson & Davie and Data Communications and Networking by Kurose & Ross and Behrouz A. Forouzan.
  • Algorithms: Introduction to Algorithms by Cormen and Data Structures & Algorithms by R. S. Salaria.
  • Compiler Design: Compiler Design in C by Allen I Holub and Compilers: Principles, Techniques and Tools by Aho & Ullman.
  • Operating System: Operating Systems by Stallings and Operating System Concepts by Galvin.
  • Databases: Database System Concepts by Henry. F. Korth and Normalization and indexing by Shamkant B. Navathe.
Q:   For how many papers can one student apply in GATE 2025?
A: 

Students applying for GATE 2025 can opt for two subject papers from the prescribed set of combinations. Earlier, the candidates could apply to appear in only one subject. As a candidate can appear in only two papers (only approved set) of the 30 papers for which GATE 2025 will be conducted, they must carefully choose the papers they wish to write. A candidate is expected to appear in the papers appropriate to the discipline of his or her qualifying degree. However, he or she is free to choose any paper according to his or her admission plan, keeping in mind the GATE eligibility criteria of the institutions in which he or she wishes to seek admission. For more details regarding the admission criteria at any particular institute, the candidate is advised to refer to the websites of that institute. Those candidates opting for two paper combinations for GATE 2025 have a primary choice of paper as their default choice. The second choice of paper has to be chosen from the allowed combinations. Listed combinations are only allowed, and those that are not listed are not allowed. For more detail Read: https://www.shiksha.com/engineering/gate-exam-pattern. 

GATE Computer Science and Information Technology (CS & IT) Previous Year Question Papers

Candidates can view and download Year-wise question papers from 2024 to 2018 below, along with respective answer keys. Previous year papers help a lot in understanding the type of questions and weightage of different topics, hence acing in the exam;

Year Question Paper Answer Key
CS 1 2024 Download PDF Download PDF
CS 2 2024 Download PDF Download PDF
CS 2023 Download PDF Download PDF
CS 2022 Download PDF Download PDF
CS 1 2021 Download PDF Download PDF
CS 2 2021 Download PDF Download PDF
CS 2020 Download PDF Download PDF
CS 2019 Download PDF Download PDF
CS 2018 Download PDF Download PDF

For more Previous Year Papers, visit: GATE Previous Year Question Papers

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How To Use GATE CS & IT Previous Year Question Papers in your GATE 2025 Preparation

  1. Candidates can get the help of GATE CS PYQs while studying any topic to understand its relevance and weight in the exam.
  2. Candidates can also access the difficulty level of the exam through GATE PYQs in CS & IT papers and prepare the topic accordingly.
  3. Candidates can best utilize GATE CS PYQs to analyze their speed in solving the questions in real-time.
  4. Candidates can also use GATE CS papers to decide which topic to focus on and which to avoid.
  5. Candidates can learn how and when to skip questions while solving the question paper in real-time, using the GATE CS Question paper.
Q&A Icon
Commonly asked questions
Q:   What is the benefit of attempting two papers in GATE?
A: 

Attempting two papers in GATE allows students to broaden their skills and career options in different disciplines. Implemented in 2021, the GATE two paper combination can be chosen from the given list of paper combinations (already set by the authorities). With the GATE two paper combination list, also, you have better chances of qualifying the examination. 

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GATE Exam Pattern: Check Brief Exam Pattern

Particulars

Details

Duration of Exam

3 hours (180 minutes)

Total Number of Questions

65

Total Marks

100

Type of Questions

  • Multiple Choice Questions (MCQs)
  • Numerical Answer Type (NAT) Questions

Section-wise Marks

  • General Aptitude: 15 Marks
  • Engineering Mathematics: 12 Marks
  • Computer Science: 72 Marks

Marking Scheme

  • MCQs: One mark for each correct answer; 1/3 mark deducted for every wrong answer
  • MCQs: Two marks for each correct answer; 2/3 mark will be deducted for every incorrect response
  • There will be no negative marking for Numerical Answer Type (NAT) questions

Read More:

GATE CSE Books: Check The Most Recommended GATE CSE Preparation Books

GATE CS & IT Syllabus for GATE : Free PDF Download

GATE ECE Books: Check Best Topics-wise Books For GATE Preparation

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About the Author
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UPASANA PRADHAN
Assistant Manager- Editorial

Upasana Pradhan is an Mtech graduate in Electronics and Communication Engineering from DTU who specialises in curating postgraduate and undergraduate engineering entrance exam content, such as GATE, TS PGECET, KCET,

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Answered 4 days ago

If additional amount is deducted while filling GATE exam form 2027, then extra amount will be refunded within 15 to 20 days.

S

Sumridhi Sinha

Contributor-Level 8

Answered 4 days ago

No, GATE conducting body allows candidates to attempt for two subjects only. Candidates can select one primary and secondary paper based on their relevant degree during GATE registration. 

H

Himanshi Choudhury

Contributor-Level 8

Answered 4 days ago

GATE 2027 is a computer-based national test administered by IIT Madras.  Candidates must be currently enrolled in atleast 3rd year or have completed a bachelor's degree in engineering, Science or technology. The exam duration is of 3 hours and covers 100 marks. It has no age limit.

A

Akanksha Yadav

Contributor-Level 10

Answered 5 days ago

IIT Bombay M.Tech cutoff 2026 was 600 for the M.Tech in Mechanical Engineering course for the General AI category. Hence, students need to secure a score of at least 600 if they want admission at IIT Bombay. To know the minimum score required by other categories for the same course, check the lsit b

...Read more

N

Neerja Rohatgi

Contributor-Level 10

Answered 5 days ago

IIT Bombay COAP cutoff 2026 for the General AI category ranged from 325 to 650 in the first round. As per this range, General AI category need to score at least 325 to be considered eligible for admission. Refer to the list below to know the round 1 cutoff range for other categories under the All In

...Read more

N

Neerja Rohatgi

Contributor-Level 10

Answered 5 days ago

SC AI students have to score at least 217 if they want admission at IIT Bombay. The higher the score, the better chances of admission. Those who want admission to more popular courses will have to score higher, ie, for M.Tech CSE course, a score of at least 400 is needed.

 See below to know which cou

...Read more

N

Neerja Rohatgi

Contributor-Level 10

Answered 5 days ago

GATE scorecard is valid for three years, starting from the result declaration date. Candidates who have qualified GATE exam can download their scorecard and use it for admission to IITs/NITs/IIITs/GFTIs or PSU recruitment.  

U

UPASANA PRADHAN

Contributor-Level 10

Answered a week ago

NIT Nagaland CCMT cutoff 2026 has been released till Round 6 for admission to the M.Tech course and its various specialisations. For the General AI category, admission to the M.Tech CSE course was possible with a score of 377. The higher the score, the better the chance of admission.

Students can che

...Read more

N

Neerja Rohatgi

Contributor-Level 10

Answered 2 weeks ago

Candidates can check their GATE 2027 exam city allotment (where their exam centre is located) by logging at GOAPS. Based on city allocated they can plan their travel arrangements.

S

Shiksha Hazarika

Contributor-Level 8

Answered 2 weeks ago

IIT Madras will announce GATE 2027 exam city allotment list on January 4, 2027. Candidates who have registered can check using their enrolment ID and password.

P

Piyush Shukla

Contributor-Level 8