1
Attempt
Start a timed mock
Practise with UPSC-weighted question distribution, negative marking, and the pressure of a timed session.
UPSC Prelims mock test
Free UPSC Prelims Mock Test with AI Explanations
Take timed mock tests, review option-by-option explanations, and strengthen weak areas with PYQ-based practice from 9,400+ MCQs across 7 subjects. Free to start.
9,400+
Practice questions
2,300+
Solved PYQs
7
GS subjects
115+
Chapters
How it works
Attempt, review, and close the gaps
The mock-test flow is built around exam-style practice followed by detailed explanations and targeted revision.
2
Review
Read every option's explanation
Each question is solved option by option, so revision covers why the right choice is right and why the distractors fail.
3
Improve
Track weak areas
Use accuracy and pace signals from completed practice to turn weak chapters into targeted revision sessions.
What's included
Mock tests backed by the full question bank
Move between focused subject practice, PYQ revision, and timed mixed mocks without leaving the PrelimsAI question bank.
Timed mock tests
Full-length, timed mocks with negative marking for exam-pressure practice.
Subject-wise practice
7 UPSC Prelims subjects organised into 115+ chapters for focused revision.
PYQ-based preparation
2,300+ previous year questions from 25 years of UPSC papers, tagged by subject, chapter, and year.
Option-by-option explanations
Every solved question explains the reasoning behind each answer choice, not just the final answer.
Plan your revision
Use the free resources around every mock
These public study hubs help you diagnose, revise, and retest the areas that show up in mock-test review.
Subject-wise MCQs
Build chapter coverage across all 7 Prelims subjects before you take mixed mocks.
Open resource →Previous Year Questions
Practise 2,300+ solved PYQs by year and subject, with explanations for every option.
Open resource →Daily Current Affairs
Read editor-reviewed daily digests and test the facts with prelims-style quiz questions.
Open resource →UPSC Prelims Syllabus
Map every mock-test mistake back to the GS Paper I and CSAT syllabus areas.
Open resource →Frequently asked questions
- Is the UPSC Prelims mock test free to start?
- Yes. You can create a free account and start practising UPSC Prelims MCQs with option-by-option explanations.
- How many questions are available for mock-test practice?
- PrelimsAI has 9,400+ MCQs across 7 subjects and 115+ chapters, with timed mock tests, subject-wise practice, and PYQ-based revision.
- Are UPSC previous year questions included?
- Yes. 2,300+ previous year questions from 25 years of UPSC Prelims papers are tagged by subject, chapter, and year, with detailed explanations.
- Does the mock test include negative marking practice?
- Yes. PrelimsAI mock-test practice includes negative marking. As a public UPSC Prelims exam-pattern fact, GS Paper I has 100 questions for 200 marks in 2 hours, with one-third negative marking.
- Can I practise subject-wise as well as full-length mocks?
- Yes. PrelimsAI supports subject-wise and chapter-wise practice, plus full mixed mock tests and full-length timed mocks with negative marking.
- What do the AI explanations cover?
- Every solved question includes option-by-option explanations, so you can review why each choice is right or wrong and connect mistakes back to weak areas.
Start your next mock test
Create a free account and practise with timed mocks, option-by-option explanations, PYQs, and subject-wise revision.