The 7 official UPSC CSE 2020 question papers and 2 answer keys are on this page as PDFs from UPSC, with the original source linked beside each file. The UPSC CSE exam covers Prelims (General Studies and CSAT), Mains (Essay, General Studies and an Optional subject) and an interview. Download them below, then sit the paper under exam timing with the attempt plan and error-log routine on this page.
Explore: UPSC CSE hub · Topic-wise PYQs · Syllabus & pattern · UPSC CSE 2025 · How to use PYQs
Download the paper
Download the official UPSC CSE 2020 question paper (PDF), hosted on this site with the official source linked.
Why this year matters
Older UPSC CSE papers like 2020 are for mining, not nostalgia. Keep current marking rules, and skip topics the latest brochure dropped. Split Prelims GS and CSAT into separate timed blocks. Save Mains papers for outline drills the same week you review Prelims themes.
Use 2020 to build static depth: maps, institutions, ecology basics, modern history arcs. Flag anything the latest syllabus no longer asks.
Paper analysis
Snapshot of UPSC CSE 2020
2020 sat in a disrupted calendar year. Keep current brochure timing, and treat the paper as pattern practice rather than a calendar replica.
2020 may feel differently paced than the newest cycle. Borrow stamina and theme lessons; do not copy obsolete section orders or marking quirks.
What this paper stresses
- Statement-based polity and economy items where two options look nearly right.
- Environment and science-tech questions that punish vague CA notes.
- CSAT comprehension and quant that still fail otherwise strong GS candidates.
- Map and institution questions that reward quiet static revision.
What to extract before you move on
- Static themes that survived into the newest Prelims (polity articles, ecology concepts, modern history arcs).
- CA topics that only made sense when tied to a scheme / institution / map.
- CSAT question types that still slow you down (RC vs quant vs logic).
- Two Mains-ready outlines from Prelims themes you missed.
How 2020 sits next to other years
Use 2020 only after UPSC CSE 2025, UPSC CSE 2024, UPSC CSE 2023 are logged. Archive years are for frequency maps, not for predicting tomorrow’s cut-off.
Looking for another shift, set or language? Check the official archive.
UPSC CSE 2020 Mains: all papers
Every Mains paper UPSC posted for 2020. Optional subject papers are 250 marks each; the Indian language and English papers are qualifying (300 marks each, not counted in the merit ranking).
General Studies and Essay
Essay Paper · General Studies Paper I · General Studies Paper II · General Studies Paper III · General Studies Paper IV
Optional subjects (Paper I and Paper II)
| Subject | Paper I | Paper II |
|---|---|---|
| Agriculture | ||
| Animal Husbandry and Veterinary Science | ||
| Anthropology | ||
| Botany | ||
| Chemistry | ||
| Civil Engineering | ||
| Commerce and Accountancy | ||
| Economics | ||
| Electrical Engineering | ||
| Geography | ||
| Geology | ||
| History | ||
| Law | ||
| Management | ||
| Mathematics | ||
| Mechanical Engineering | ||
| Medical Science | ||
| Philosophy | ||
| Physics | ||
| Political Science and International Relations | ||
| Psychology | ||
| Public Administration | ||
| Sociology | ||
| Statistics | ||
| Zoology |
Literature optionals
| Subject | Paper I | Paper II |
|---|---|---|
| Assamese Literature | ||
| Bengali Literature | ||
| English Literature | ||
| Gujarati Literature | ||
| Hindi Literature | ||
| Kannada Literature | ||
| Maithili Literature | ||
| Malayalam Literature | ||
| Manipuri Literature | ||
| Marathi Literature | ||
| Odia Literature | ||
| Punjabi Literature | ||
| Sanskrit Literature | ||
| Sindhi (Arabic) Literature | ||
| Tamil Literature | ||
| Telugu Literature | ||
| Urdu Literature |
Compulsory language papers (qualifying)
| Language | Paper |
|---|---|
| Assamese | |
| Bengali | |
| Bodo | |
| English | |
| Gujarati | |
| Hindi | |
| Kannada | |
| Maithili | |
| Malayalam | |
| Marathi | |
| Nepali | |
| Odia | |
| Punjabi | |
| Sanskrit | |
| Sindhi (Arabic) | |
| Tamil | |
| Telugu | |
| Urdu |
Topic-wise analysis
We tagged every question in the official 2020 paper on this page by topic: 100 questions (100 MCQ). The topics with the most questions:
- History and Culture: Modern India and the Freedom Struggle 8, Ancient India 7, Art and Culture 3 questions.
- Geography: Indian Geography 3, Physical Geography 2, World Geography 1 questions.
- Polity and Governance: Constitution and Constitutional Bodies 14, Governance, Rights and Welfare Schemes 4 questions.
- Economy: Agriculture 12, Money, Banking and Macroeconomy 10, Growth, Sectors, Budget and Trade 6 questions.
- Environment: Ecology and Biodiversity 8, Climate Change, Pollution and Conventions 5 questions.
- Science and Technology: Space, IT and Defence Technology 6, Biotechnology and Health 4, General Science 2 questions.
- Current Affairs: International Relations and Organisations 3, Reports, Indices and Current Events 1 questions.
Against UPSC Prelims 2019, the biggest changes in question count: Agriculture +6, Governance, Rights and Welfare Schemes -5, Climate Change, Pollution and Conventions -5, Ancient India +4.
The official UPSC Prelims 2020 paper (GS Paper I), tagged question by question: 100 questions (100 MCQ). Answers come from the official UPSC answer keys, read for the booklet series of the hosted paper (series A). Years without a hosted key show no answer; questions UPSC dropped are marked as dropped.
| Topic | Questions | vs 2019 |
|---|---|---|
| History and Culture | 19 | |
| Ancient India | 7 | +4 |
| Medieval India | 1 | -1 |
| Modern India and the Freedom Struggle | 8 | +3 |
| Art and Culture | 3 | -2 |
| Geography | 6 | |
| Physical Geography | 2 | 0 |
| Indian Geography | 3 | -1 |
| World Geography | 1 | 0 |
| Polity and Governance | 18 | |
| Constitution and Constitutional Bodies | 14 | +3 |
| Governance, Rights and Welfare Schemes | 4 | -5 |
| Economy | 28 | |
| Money, Banking and Macroeconomy | 10 | -1 |
| Growth, Sectors, Budget and Trade | 6 | 0 |
| Agriculture | 12 | +6 |
| Environment | 13 | |
| Ecology and Biodiversity | 8 | +2 |
| Climate Change, Pollution and Conventions | 5 | -5 |
| Science and Technology | 12 | |
| General Science | 2 | -1 |
| Biotechnology and Health | 4 | -1 |
| Space, IT and Defence Technology | 6 | +1 |
| Current Affairs | 4 | |
| International Relations and Organisations | 3 | -1 |
| Reports, Indices and Current Events | 1 | -1 |
Topics with no question in 2020 or 2019 are left out. Every question, by topic: UPSC Prelims topic-wise PYQs.
How to sit UPSC CSE 2020
- Download Prelims GS Paper I and Paper II (CSAT) from the official UPSC links. Keep Mains papers for a separate sitting.
- Two hours for GS I, two hours for CSAT. Do not merge them into one vague afternoon.
- When the clock ends, stop. Review should take at least as long as the attempt.
- Fill the error log the same day: section, topic, and miss type (concept, silly, time, or misread).
- Next session, repair only logged items. Then pick another year from the decade list.
- For Mains the same week: pick two Prelims themes and write short outlines or 150-250 word answers.
Other years in this decade
- UPSC CSE 2025
- UPSC CSE 2024
- UPSC CSE 2023
- UPSC CSE 2022
- UPSC CSE 2021
- UPSC CSE 2019
- UPSC CSE 2018
- UPSC CSE 2017
- UPSC CSE 2016
FAQ
Where can I download the official UPSC CSE 2020 question paper?
Download it from this page: the official PDF is here, with a link to the conducting body’s original.
What does the UPSC CSE 2020 paper analysis include?
A year snapshot, what the paper stresses, what to extract into your error log, and how 2020 compares with neighbouring years on this hub.
How should I practise the UPSC CSE 2020 previous year paper?
Open the official PDF, sit it timed under current brochure rules, fill an error log the same day, read the paper analysis, then move to another year in the decade list.
Is UPSC CSE 2020 still useful if I finished newer papers?
Yes, for theme and weightage mining after your newest papers are logged. Skip deleted syllabus pockets.
Are memory-based UPSC CSE 2020 papers reliable?
Treat memory-based sets as interim. Reconcile contested items with official keys or response sheets when the conducting body publishes them.
Where is the UPSC CSE syllabus and pattern for this paper?
See the UPSC CSE syllabus & pattern page on this hub, and always re-check the latest official brochure before exam day.