PrelimsAI
About

UPSC Civil Services Prelims

Master Every Question,
Understand Every Answer

9,400+ questions across 7 subjects and 115+ chapters — with option-by-option explanations and 2,300+ PYQs from 25 years of UPSC papers.

9,400+

Practice Questions

7

Subjects

115+

Chapters

2,300+

PYQs Tagged

Coverage Depth

Every Subject, Fully Covered

Not a sampler — a complete question bank built chapter by chapter across the entire Prelims syllabus.

1,900+

History & Culture

23 chapters · 600+ PYQs

1,400+

Indian Economy

18 chapters · 450+ PYQs

1,400+

Geography

18 chapters · 250+ PYQs

1,250+

Environment

16 chapters · 250+ PYQs

1,250+

Polity & Governance

17 chapters · 300+ PYQs

1,100+

Science

14 chapters · 300+ PYQs

950+

Current Affairs

12 chapters · 90+ PYQs

Every question includes explanations for all four options — not just the correct one.

Why PrelimsAI

Built for Serious Aspirants

Chapter-wise Practice

Structured, sequential learning organized by subject and chapter. Build mastery one topic at a time.

Mock Tests

UPSC-weighted question distribution with negative marking. Experience the real exam pressure.

Option-by-option Explanations

Understand why each option is right or wrong. Learn the reasoning behind every answer choice.

Past Year Questions

2,300+ tagged PYQs from 25 years of UPSC papers, organized by chapter. Practice the questions that matter most.

How It Works

Three Simple Steps

Pick a Subject & Chapter

Browse subjects, choose a chapter, and configure your practice session exactly how you want it.

Answer One at a Time

Focus on each question individually. Confirm your answer, skip, or flag for review.

Learn from Explanations

Review detailed explanations for every option. Understand the reasoning, not just the answer.

Start Practicing Today

9,400+ questions. Every option explained. Every subject covered. Free.

PrelimsAI

Structured practice for UPSC Prelims

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