Previous Year Questions
with Solutions & Strategy Hacks
Interactive MCQs and pedagogical explanations for UPSC Prelims GS Paper 1 — with official answer keys, option-trap breakdowns, and elimination heuristics for every question.
3300+
Questions
30+
Years
11
Subjects
PYQ Realm
Explore uniquely linked repeated Prelims PYQs across years in an interactive 3D knowledge graph, with every question connected to topic clusters and elimination logic.
Prelims PYQ RealmBeyond Previous Year Questions
Structured Prelims Practice & Mentorship
Pair previous year question analysis with full-length simulated mock tests and 1-on-1 faculty guidance.
Acme Prelims Test Series (APT)
Built to eliminate 1/3rd negative marking losses and 50–50 option traps through structured simulation and NCERT-backed keys.
- 50 High-Yield Tests: Subject Sectionals, Current Affairs, CSAT Paper II & Full-Length Simulators
- 1/3rd Penalty & Trap Analytics: Identify whether marks are lost to over-attempting or conceptual gaps
- Option-by-Option NCERT Keys: Detailed distractor analysis and elimination logic for every question
- Custom PDF-to-Mock Generator: Convert your revision notes or current affairs PDFs into practice tests
1-on-1 UPSC Mentorship with Avinash Sir
Weekly 1-on-1 strategy reviews, daily study accountability, and personalized MCQ attempt audits with an experienced UPSC mentor.
- Weekly 1-on-1 Sessions: Direct mentorship with Avinash Sir (Former Plutus IAS Mentor, UPSC & UPPCS Mains Written)
- APT 50-Test Series Included: Full Prelims GS1 & CSAT test series bundled at no additional cost
- Mock Attempt & Elimination Audit: Question-by-question review to calibrate your risk and attempt accuracy
- Prelims & Integrated Tracks: Available as dedicated Prelims mentorship or end-to-end Prelims + Mains guidance
UPSC Prelims GS Paper 1 Subject-Wise Weightage & High-Yield Themes
2013–2025 Official UPSC Trend Analysis| Subject | Avg. Annual Questions | Marks Share (Out of 200) | Most Repeated Micro-Topics |
|---|---|---|---|
| Indian Polity & Governance | 15–18 Qs | 30–36 Marks | Fundamental Rights, Parliament, Judiciary, Constitutional Bodies, Schedules |
| Indian Economy | 15–19 Qs | 30–38 Marks | Monetary Policy & RBI, Banking, BoP, Capital Markets, Inflation, Agriculture |
| Environment & Ecology | 14–18 Qs | 28–36 Marks | Protected Areas, Species in News, Climate Conventions, Pollution & Laws |
| Indian & World Geography | 12–16 Qs | 24–32 Marks | River Systems, Climatology, Critical Minerals, World Mapping & Places in News |
| History & Art & Culture | 14–18 Qs | 28–36 Marks | Buddhism & Jainism, Temple Architecture, Charter Acts, Freedom Struggle |
| Science & Technology | 11–14 Qs | 22–28 Marks | Biotechnology, Space Missions, Defence Tech, Digital Infrastructure & AI |
Browse UPSC Prelims PYQs by Subject & Exam Year
Subject-Wise Prelims Question Banks
Year-Wise UPSC Prelims Question Papers with Solutions
Frequently Asked Questions — UPSC Prelims PYQs & Preparation
Where can I practice topic-wise UPSC Prelims Previous Year Questions with official answers?
On Acme AI (acmeias.com/prelims-pyq), you can browse and practice 10+ years of UPSC Prelims GS Paper 1 Previous Year Questions filtered by subject, micro-topic, or year. Every question includes an interactive MCQ tester, the official UPSC answer key, NCERT-backed conceptual explanations, and option elimination strategy hacks.
How many years of UPSC Prelims PYQs should I solve for UPSC CSE 2026–2027?
Serious aspirants should thoroughly analyze at least 12 to 15 years of UPSC Prelims PYQs (2013–2025). Nearly 35–40% of Prelims questions each year either repeat core conceptual themes from past years or build directly upon options mentioned in previous UPSC papers.
Do elimination techniques still work in UPSC Prelims with statement-pair questions?
Yes—while simple 1-option elimination was reduced by "Only one / Only two / All three" pair formats, logical statement elimination, extreme modifier detection, chronological anchoring, and constitutional logic remain essential to narrow down statements. Each question page on Acme AI includes a dedicated "Acme Strategy Hack" box demonstrating this exact logic.
How do I transition from solving Prelims PYQs to full-length mock tests?
Once you master subject-wise PYQs, enroll in the Acme Prelims Test Series (APT 2027 — 50 High-Yield Tests) to practice under real exam time pressure with 1/3rd negative marking analytics, or join 1-on-1 UPSC Mentorship with Avinash Sir (which includes all 50 APT Prelims tests free).
What Aspirants Say About Our Prelims PYQ Vault
Trusted by UPSC aspirants across India for conceptual solutions and option-elimination heuristics.
“Practicing Prelims PYQs with Acme’s option-by-option elimination hacks helped me jump from 78 to 114+ in GS Paper 1. You immediately see why UPSC sets specific statement traps.”
Ananya Deshmukh
Cleared Prelims 2025 · Score 114.66
“Having every Prelims question organized by subject, micro-topic, and year—plus connected to repeated PYQs from earlier years—saved me hundreds of hours of revision.”
Vikramjit Singh
UPSC CSE 2026 Aspirant · Chandigarh
“The Strategy Hack box below each explanation is pure gold. Combined with the APT 50-test series, my negative marking dropped by almost half.”
Kavitha Ramaswamy
Appeared Prelims 2x · Targeting 2026