Keystone
Free mock testsOfficial GATE papersOfficial answer keys
#MOCK

Free online mock tests

Exam ready
Start learning

Take free year-wise, subject-wise, mixed and full-length mock tests built from official GATE papers. The clock runs like the real exam, marking follows the GATE scheme, and every answer is checked against the official key the moment you submit.

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Practice modes

Four ways to take the same question bank, from one year's paper to a mixed set built for you. Open a folder to see what is inside.

Mode 1

One complete paper per year, in its original order, with the original time limit.

Open year-wise tests
Mode 2

Every question from one subject. Narrow it to the topics you are weak in.

Open subject-wise tests
Mode 3

A balanced set across several subjects, assembled when you start.

Open mixed tests
Mode 4

The complete paper pattern, timed end to end, for a dress rehearsal.

Start the full-length mock
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About us

Keystone · free
13
Papers
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Questions
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PDF notes

Hi, we are Keystone!

A free GATE practice platform for CS and Data Science & AI students. Every question comes from an official GATE paper and is marked against the official answer key. We add new papers as the official keys are published, and we read every piece of feedback.

Practise
  • Year-wise papers
  • Subject-wise sets
  • Mixed and full-length
Track
  • Score after you submit
  • Marks, accuracy and negatives
  • Review every answer
Learn
  • PDF notes in the browser
  • Notes by subject
  • Free books library
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Exam papers

Every paper is a full 65-question GATE paper with its official key. Filter by branch, open one for its details; arrow keys page through.

See every test
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How it works

01

Pick a test

Choose a year's paper, one subject, a mix of subjects, or the full 65-question mock.

  • Year-wise
  • Subject-wise
  • Mixed and full-length

Meet your mentors

The people behind Keystone. Reach out with questions, feedback or ideas for new papers.

Surajit Sadhukhan Surajit SadhukhanLead
Sayan Karmakar Sayan KarmakarCo Lead

Doubts, updates and new papers, shared with students and mentors in one group.

Join the WhatsApp group
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Start
Start today

Take a paper from any year, or build a test around the subjects you find hardest. Free, with the official answer keys.