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UPSC CSE 2027 Syllabus:
Prelims & Mains, on paper.

stages · marks · qualifying rules · syllabus — one notebook

No coaching-brochure noise. Just the architecture of the exam: what's screening, what's merit, what counts toward your final rank, and what doesn't.

400
Prelims marks
doesn't count! ✗
1750
Mains merit marks
275
Interview marks
2025
Final rank, out of
this is the real number
three stages

How the exam is built

Preliminary Exam

GS-I 200 · CSAT 200 · same day

Two MCQ papers. GS-I sets the cutoff; CSAT only needs to be cleared, never maximised.

GS-I
200 mk
CSAT
33% min
counts toward rank: 0
One-third negative marking per wrong answer. Clearing CSAT doesn't help your merit — only GS-I ranks you.

Main Examination

7 merit papers + 2 qualifying language papers
Indian Language qualifying300
English qualifying300
Essay merit250
GS I – IV merit1000
Optional I & II merit500
Mains merit total1750
Optional subject alone is ~29% of Mains merit — your highest-leverage choice.

Personality Test

275 marks · no fixed syllabus

The Board reads your Detailed Application Form — not a textbook.

mental alertness logical exposition balance of judgement integrity leadership
Prep surface: home state, education, work history, hobbies, optional subject, current affairs as opinion — not fact recall.
from the UPSC Calendar 2027

UPSC CSE 2027 key dates

Civil Services Examination 2027 UPSC Annual Calendar 2027 · as on 20.05.2026
EventDateDayNotes
Notification released13 January 2027WednesdayCS(P) and IFS(P) 2027 notified together
Last date to apply2 February 2027TuesdayOnline application only
Prelims (CS-P) 202723 May 2027Sunday1 day · GS-I and CSAT
Mains (CS-M) 2027from 20 August 2027Friday5 days

UPSC says calendar dates are “liable to alteration, if the circumstances so warrant”. For CSE 2026 the calendar listed the notification for 14 January 2026, but it was actually issued on 4 February 2026, so confirm on upsc.gov.in before you plan around these dates. Source: UPSC Annual Calendar 2027 (PDF).

do the maths

Add it up yourself

Essay150
GS Paper I100
GS Paper II100
GS Paper III100
GS Paper IV100
Optional Paper I130
Optional Paper II130
Interview160
final total
970
/ 2025
400 Prelims marks never enter this circle.
Final rank = Mains merit (1750) + Interview (275).
UPSC CSE 2027 · screening stage

Prelims syllabus, clearly

GS Paper I 200 mk · merit for cutoff
  • Current events of national and international importance
  • History of India and the Indian National Movement
  • Indian and World Geography — physical, social, economic
  • Indian Polity & Governance — Constitution, Panchayati Raj, public policy, rights issues
  • Economic & Social Development — sustainable development, poverty, inclusion, demographics
  • Environmental ecology, biodiversity & climate change (non-specialist level)
  • General Science
GS Paper II · CSAT 200 mk · qualifying at 33%
  • Comprehension
  • Interpersonal skills, including communication skills
  • Logical reasoning and analytical ability
  • Decision making and problem solving
  • General mental ability
  • Basic numeracy — numbers, orders of magnitude (Class X level)
  • Data interpretation — charts, graphs, tables, data sufficiency (Class X level)
only GS-I decides your Prelims cutoff — CSAT just needs a pass
always visible, nothing hidden

Mains syllabus, clearly

Paper-I · Essay 250 mk · counted for merit
  • Essays on multiple topics — the paper may ask you to write more than one essay
  • Keep closely to the subject of the essay
  • Arrange your ideas in an orderly fashion
  • Write concisely — credit is given for effective and exact expression

Official syllabus text: “Candidates may be required to write essays on multiple topics. They will be expected to keep closely to the subject of the essay to arrange their ideas in orderly fashion, and to write concisely. Credit will be given for effective and exact expression.”

Paper-A Indian Language · Paper-B English 300 mk each · qualifying at 25%
  • Comprehension of given passages
  • Precis writing
  • Usage and vocabulary
  • Short essays
  • Translation from English to the Indian language and vice versa (Paper-A only)

Both papers test your ability to read and understand serious discursive prose and to express ideas clearly and correctly. They are of Matriculation (Class 10) standard and their marks are not counted for ranking, but you need at least 25% in each: your Essay, GS and Optional papers are taken into account only if you clear both. Paper-A is not compulsory for candidates from Arunachal Pradesh, Manipur, Meghalaya, Mizoram, Nagaland and Sikkim, or for PwBD (hearing impairment) candidates exempted from a 2nd/3rd language by their Board/University.

GS-I 250 mk · Heritage, History, Geography & Society
  • Indian Culture — salient aspects of Art Forms, Literature and Architecture from ancient to modern times
  • Modern Indian History from the mid-18th century to the present — significant events, personalities, issues
  • The Freedom Struggle — its stages and important contributors from different parts of the country
  • Post-independence Consolidation and Reorganization within the country
  • History of the World from the 18th century — Industrial Revolution, world wars, redrawal of national boundaries, colonization, decolonization, political philosophies (Communism, Capitalism, Socialism) and their effects on society
  • Salient features of Indian Society, Diversity of India
  • Role of Women and Women's Organizations, population issues, poverty and developmental issues, urbanization — problems and remedies
  • Effects of Globalization on Indian society
  • Social Empowerment, Communalism, Regionalism & Secularism
  • Salient features of World's Physical Geography
  • Distribution of key natural resources across the world (incl. South Asia & the Indian sub-continent); factors behind the location of primary, secondary & tertiary industries
  • Important geophysical phenomena — earthquakes, tsunami, volcanic activity, cyclones; changes in critical geographical features (water-bodies, ice-caps, flora & fauna) and their effects
GS-II 250 mk · Governance, Constitution, Polity, Social Justice & IR
  • Indian Constitution — historical underpinnings, evolution, features, amendments, significant provisions & basic structure
  • Functions & responsibilities of the Union and the States; federal-structure issues; devolution of powers & finances to local levels
  • Separation of powers between various organs, dispute redressal mechanisms and institutions
  • Comparison of the Indian constitutional scheme with that of other countries
  • Parliament & State Legislatures — structure, functioning, conduct of business, powers & privileges
  • Structure, organization & functioning of the Executive and Judiciary; Ministries & Departments; pressure groups and formal/informal associations
  • Salient features of the Representation of the People's Act
  • Appointment to various Constitutional posts; powers, functions & responsibilities of Constitutional Bodies
  • Statutory, Regulatory and various quasi-judicial bodies
  • Government policies & interventions for development across sectors, and issues from their design & implementation
  • Development processes & the development industry — role of NGOs, SHGs, donors, charities and other stakeholders
  • Welfare schemes for vulnerable sections by Centre & States, their performance, and related mechanisms, laws, institutions & bodies
  • Development & management of social-sector services — health, education, human resources
  • Issues relating to poverty and hunger
  • Governance, transparency & accountability; e-governance — applications, models, successes & limits; Citizens' Charters
  • Role of Civil Services in a democracy
  • India and its neighbourhood — relations
  • Bilateral, regional & global groupings and agreements involving or affecting India
  • Effect of developed & developing countries' policies on India's interests; the Indian diaspora
  • Important international institutions, agencies and fora — their structure & mandate
GS-III 250 mk · Tech, Economy, Environment & Security
  • Indian Economy — planning, mobilization of resources, growth, development and employment
  • Inclusive Growth and issues arising from it
  • Government Budgeting
  • Major crops & cropping patterns, irrigation systems, storage/transport/marketing of produce, e-technology for farmers
  • Farm subsidies & MSP; PDS — objectives, functioning, limitations; buffer stocks & food security; technology missions; economics of animal-rearing
  • Food processing & related industries — scope, location, supply chain management
  • Land Reforms in India
  • Effects of Liberalization on the economy; changes in industrial policy & their effects on industrial growth
  • Infrastructure — energy, ports, roads, airports, railways etc.
  • Investment Models
  • Science & Technology — developments, applications and effects in everyday life
  • Achievements of Indians in S&T; indigenization of technology and developing new technology
  • Awareness in IT, Space, Computers, Robotics, Nano-technology, Bio-technology & Intellectual Property Rights
  • Conservation, environmental pollution & degradation, Environmental Impact Assessment
  • Disaster and Disaster Management
  • Linkages between development and the spread of extremism
  • Role of external state & non-state actors in creating challenges to internal security
  • Internal security challenges via communication networks, media & social networking; basics of cybersecurity; money laundering & its prevention
  • Security challenges & management in border areas; linkages of organized crime with terrorism
  • Various security forces & agencies and their mandate
GS-IV 250 mk · Ethics, Integrity & Aptitude
  • Attitude & approach to integrity, probity in public life, and a problem-solving approach to conflicts in society (case-study based)
  • Ethics & Human Interface — essence, determinants & consequences of ethics; dimensions of ethics; ethics in private & public relationships. Human values from great leaders, reformers, administrators; role of family, society & education
  • Attitude — content, structure, function; influence on thought & behaviour; moral & political attitudes; social influence & persuasion
  • Aptitude & foundational values for civil service — integrity, impartiality, non-partisanship, objectivity, dedication, empathy, tolerance, compassion
  • Emotional Intelligence — concepts and application in administration & governance
  • Contributions of moral thinkers & philosophers from India and the world
  • Public/Civil service values and Ethics in Public administration — status and problems; ethical concerns and dilemmas in government and private institutions; laws, rules, regulations and conscience as sources of ethical guidance; accountability and ethical governance; strengthening of ethical and moral values in governance; ethical issues in international relations and funding; corporate governance
  • Probity in Governance — concept of public service; philosophical basis of governance and probity; information sharing and transparency in government, Right to Information, Codes of Ethics, Codes of Conduct, Citizen's Charters, work culture, quality of service delivery, utilization of public funds, challenges of corruption
  • Case studies on the above issues
tap (or Tab + Space) a topic to check it off — your ticks are saved in this browser
how the bar has moved

Cut-off trends

Cut-offs move every year with paper difficulty, vacancies and how the batch performs — treat these as a range to expect, not a target to just clear.

Prelims cut-off out of 200 (GS-I) · 2018–2025
Category20182019202020212022202320242025
General989892.5187.5488.2275.4187.9892.66
EWS—9077.5580.1482.8368.0285.9289.34
OBC96.6695.3489.1284.8587.5474.7587.2892.00
SC848274.8475.4174.0859.2579.0384.00
ST83.3477.3468.7170.7169.3547.8274.2382.66
Mains cut-off out of 1750 (written total) · 2019–2025
Category2019202020212022202320242025
General751736745748741729739
OBC718698707714712702717
SC706680700699694685700
ST699682700706692684694
EWS696687713715706696706
2023 was the hardest recent year across every category — don't panic if a paper feels tough
start to finish

The full journey

1
Notification & application
2
Prelims exam
3
Prelims result
4
Mains documents
5
Mains written exam
6
Mains result
7
Personality test
8
Final result & rank
9
Service & cadre allocation
quick answers

UPSC CSE 2027 syllabus: FAQs

What is the UPSC CSE 2027 syllabus?

The UPSC CSE 2027 syllabus has three stages: Prelims (GS Paper-I and CSAT), Mains (nine written papers) and the Personality Test. Prelims GS-I covers current events, history, geography, polity, economy, environment and general science; CSAT covers comprehension, reasoning, decision making and Class X level numeracy. Mains has Essay, GS-I to GS-IV, two Optional papers and two qualifying language papers.

When will the UPSC CSE 2027 notification be released?

As per the UPSC Annual Calendar 2027, the CSE 2027 notification is due on 13 January 2027, with 2 February 2027 as the last date to apply. Prelims is scheduled for 23 May 2027 and Mains from 20 August 2027. UPSC notes these dates can change, so confirm on upsc.gov.in.

How many papers are there in UPSC Mains?

UPSC Mains has 9 papers. Seven are counted for merit: Essay, GS-I, GS-II, GS-III, GS-IV, Optional Paper 1 and Optional Paper 2, at 250 marks each (1750 in total). Two are qualifying: Paper-A (an Indian language) and Paper-B (English), at 300 marks each.

Do the Mains language papers count towards rank?

No. Paper-A (Indian language) and Paper-B (English) are qualifying only, and their marks are not counted for ranking. You must score at least 25% in each, because your Essay, GS and Optional papers are taken into account only if you clear both.

Is CSAT counted in the UPSC Prelims cut-off?

No. CSAT (GS Paper-II) is qualifying with a minimum of 33%, and the Prelims cut-off is decided on GS Paper-I marks only. Prelims marks are not added to your final score either; the final rank is based on Mains (1750) plus the interview (275), out of 2025.

Has the UPSC syllabus changed for 2027?

The CSE 2027 notification is not out yet, so there is no official change announced for 2027. This page follows the latest official syllabus, from the CSE 2026 notification, so check it against the 2027 notification once UPSC publishes it.

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