1,750 meritScore plannerQCAB & 10% ruleAIR-1 snapshot

UPSC Mains Guide 2027 — 9 Papers, 1,750 Marks & Answer Writing

UPSC Mains paper list, merit vs qualifying papers, 10% sectional rule, and answer-writing workflows with UPSC Shelf faculty review.

1. Summary2. Score planner3. Paper map4. Day slots5. Essay6. GS topics7. Answer anatomy8. QCAB9. Optionals10. Cut-offs11. FAQs12. In Shelf
Merit vs qualifying · 1,750 + 275

Nine descriptive papers over five days. Papers A & B (languages) qualify at 25% (75/300). Essay, GS I–IV, and Optional I–II make 1,750 merit marks. You need ≥ 10% (25/250) in each merit paper. Interview adds 275 for a 2,025 grand total.

Written merit
1,750
7 papers × 250
Interview
275
Personality test
Grand total
2,025
Final AIR pool
Sectional min
10%
≥ 25 / 250 per merit paper
Language bar
25%
≥ 75 / 300 Papers A & B

Mains + interview score planner

Illustrative · out of 2,025

Drag paper scores to see written (1,750) and grand total. Enforces the 10% sectional floor (≥ 25 in each merit paper).

GS I–IV
430
/ 1,000
Optional
285
/ 500
Written
850
/ 1,750
Grand
1030
/ 2,025

Comfortable vs recent Gen final cut-offs (~947–982)

Nine-paper map

Mains written scheme

PaperSubjectMarksDurationStatus
Paper ACompulsory Indian Language (8th Schedule)3003 hrsQualifying · 25% (75)
Paper BEnglish (Comprehension & Précis)3003 hrsQualifying · 25% (75)
Paper IEssay (Section A + Section B)2503 hrsMerit
Paper IIGS I — Heritage, History, Society & Geography2503 hrsMerit
Paper IIIGS II — Governance, Constitution, Polity, SJ & IR2503 hrsMerit
Paper IVGS III — Economy, S&T, Environment, Security & DM2503 hrsMerit
Paper VGS IV — Ethics, Integrity, Aptitude & Case Studies2503 hrsMerit
Paper VIOptional Subject — Paper 12503 hrsMerit
Paper VIIOptional Subject — Paper 22503 hrsMerit
Timetable

Typical 5-day slotting

DayForenoonAfternoon
Day 1 (Friday)Paper I · Essay—
Day 2 (Saturday)Paper II · GS 1Paper III · GS 2
Day 3 (Sunday)Paper IV · GS 3Paper V · GS 4
Day 4 (next Saturday)Paper A · Indian LanguagePaper B · English
Day 5 (next Sunday)Paper VI · Optional 1Paper VII · Optional 2
Essay · 250 marks

Two themes · one brainstorm ritual

Abstract / philosophical

Metaphorical unpacking across individual, society, and geopolitics — brainstorm before writing.

Governance, tech & sustainability

Human development, institutions, climate equity, constitutional paradigms.

Many toppers spend ~20 minutes per essay on SPECLIM / PESTLE brainstorming (thesis, sequence, quotes, counters) before the intro hook. Two essays, ~1,000–1,200 words each, in 3 hours.

GS & Essay spines

Micro-topics for merit papers

Paper II · 250 merit marks

GS I — Heritage, History, Society & Geography

250 marks · ~20 questions · 10m & 15m · 3 hours

Open Mains blueprint →

Counted for merit. Sectional minimum 10% (25/250).

Indian Heritage & Culture

Art forms, literature, architecture; classical dance; Nagara/Dravida/Vesara; Bhakti–Sufi; Buddhist/Jain art.

Modern Indian History & Freedom Struggle

Mid-18th century to 1947; 1857; Swadeshi to Quit India; reformers; revolutionaries; INA.

Post-Independence & World History

Princely integration, linguistic states, land reforms; Industrial Revolution, World Wars, Cold War, decolonisation.

Indian Society

Diversity, women, population, poverty, urbanisation, globalisation, communalism, regionalism, secularism.

Physical & Human Geography

Geomorphology, climatology (monsoon, El Niño), oceanography, resources, industrial location factors.

Paper III · 250 merit marks

GS II — Governance, Constitution, Polity, Social Justice & IR

250 marks · ~20 questions · 10m & 15m · 3 hours

Open Mains blueprint →

Counted for merit. Sectional minimum 10% (25/250).

Indian Constitution & Political System

Evolution, features, amendments, Basic Structure; comparison with other democracies.

Federalism & Separation of Powers

Union–State functions, local bodies (73rd/74th), dispute redressal.

Parliament, Legislatures & Executive

Conduct of business, privileges, anti-defection, ministries, pressure groups.

Statutory Bodies & RPA

EC, CAG, UPSC, Finance Commission, NITI Aayog, NHRC, NGT, tribunals; Representation of People Act.

Governance & Social Justice

Welfare schemes, health, education, poverty/hunger, e-governance, Citizen’s Charters, NGOs/SHGs.

International Relations

Neighbourhood, Quad/BRICS/SCO/G20, diaspora, UN/WTO/IMF/World Bank.

Paper IV · 250 merit marks

GS III — Economy, Agri, S&T, Environment, Security & DM

250 marks · ~20 questions · 10m & 15m · 3 hours

Open Mains blueprint →

Counted for merit. Sectional minimum 10% (25/250).

Indian Economy & Planning

Growth, employment, inclusive growth, budgeting, resource mobilisation.

Agriculture & Food Security

Cropping patterns, irrigation, MSP, PDS, buffer stocks, food processing, animal rearing.

Infrastructure & Investment Models

Energy (incl. green hydrogen), ports, roads, airports, railways, PPP models.

Science & Technology

Everyday applications, Indian achievements, IT/space/robotics/nano/biotech, IPR.

Environment & Disaster Management

Conservation, pollution, EIA, NDMA, disaster-resilient infrastructure.

Internal Security

Extremism linkages, cyber security, money laundering, borders, organised crime–terror nexus, CAPFs.

Paper V · 250 merit marks

GS IV — Ethics, Integrity & Aptitude

250 marks · Section A theory + Section B case studies (~120–130M)

Open Mains blueprint →

Counted for merit. Case studies test dilemma resolution and constitutional morality.

Ethics & Human Interface

Essence, determinants, consequences; human values; role of family, society, education.

Attitude & Civil Service Values

Integrity, impartiality, objectivity, empathy, compassion toward weaker sections.

Emotional Intelligence & Thinkers

EI in administration; Western and Indian moral philosophers.

Probity in Governance

RTI, codes of ethics/conduct, Citizen’s Charters, work culture, corruption challenges.

Section B Case Studies

Real-world administrative dilemmas applying ethical frameworks.

Answer anatomy

Structure examiners can scan

Introduction (~15%)

25–30 word hook: definition, article number, or a recent index — then restate the ask.

Body (~60%)

PESTLE-style sub-heads matching the directive (analyse / critically evaluate) with 4–6 bullets each.

Value add (~15%)

One flowchart, India map sketch, or committee citation (2nd ARC, Law Commission, SDGs).

Conclusion (~10%)

Short constructive way-forward anchored in constitutional ideals or policy vision.

QCAB & 10% rule

Booklet discipline

  • 10-markers ≈ 150 words / ~2 pages; 15-markers ≈ 250 words / ~3 pages — space is pre-allocated.
  • Write only in blue or black ballpoint; highlighters and gel pens are typically disallowed.
  • Do not write in side margins or leave religious / identifying marks — that can attract deductions.
  • Supplementary sheets are generally not provided; plan length to the printed pages.

Sectional floor: ≥ 25 marks in each of the seven merit papers, or the written total is not ranked.

Optional · 500 marks

High-overlap subjects & target bands

OptionalGS overlapTopper band
PSIRVery high · GS-II / Essay270 – 305
SociologyHigh · Society / Ethics265 – 295
AnthropologyModerate · Tribal / GS275 – 310
GeographyHigh · GS-I / Agri260 – 290
HistoryHigh · Culture / Modern260 – 285
Pub AdHigh · Governance / Ethics265 – 295

Full list in the syllabus hub.

Cut-offs & AIR-1

Recent Gen written / final / AIR-1

Illustrative Top-50 style written target: Essay 135+, GS 410+, Optional 285+ (≈ 810–830 written) and Interview 175–190.

YearMains GenFinal GenAIR-1Interview band
20247299471093175 – 190
20237419531099175 – 195
20227489601094170 – 190
20217459531105170 – 185
20207369441076165 – 185
20197519611072170 – 190
20187749821121175 – 195

Category-wise archive in the cut-off hub.

Answer loop

Read → outline → write → feedback → revise

  1. Open the question beside your source notes in the Shelf library.
  2. Write under timed conditions; upload or type the answer.
  3. Submit for faculty evaluation when available; keep marks + comments together.
  4. Push weak themes into Planner and re-attempt with Tutor for structure only after you draft.
FAQs

Mains questions

What is the total Mains marks structure?

Nine papers: Papers A & B are qualifying languages (300 each, 25% bar). Seven merit papers × 250 = 1,750. Interview adds 275 → 2,025 grand total.

What is the 10% sectional rule?

You need at least 25/250 in each of the seven merit papers. Below that in any one paper, the aggregate is not ranked.

What are QCAB basics?

Question-cum-answer booklets with fixed pages per question. Blue/black ballpoint only; avoid margins and identifying marks; no extra sheets in normal conditions.

How heavy is the optional?

500 of 1,750 written marks (~28.5%). Strong optional scores (often 280–320 for top ranks) are a common differentiator.

How should 10-mark vs 15-mark answers differ?

10-marker (~150 words): short intro, two body heads, micro diagram, short close. 15-marker (~250 words): richer intro, three dimensions + citations, fuller way-forward.

What is GS-IV Section A vs B?

Section A is theory / values / EI (~130 marks). Section B is case studies (~120 marks) needing stakeholder mapping and balanced decisions.

Mains workspace in UPSC Shelf

Collections for GS answers, optional notes, faculty feedback, and mentor context.

Start libraryMains PYQsSafe score studio

Disclaimer: UPSC Shelf is an independent study workspace and is not affiliated with, endorsed by, or connected to the Union Public Service Commission. Official notifications, calendars, admit cards, and results are published only at upsc.gov.in.