UPSC · Civil Services Examination

Civil Services
Examination

Prepare for the Union Public Service Commission Civil Services Examination with a structured approach covering Prelims, Mains, and the Personality Test — and see exactly which services you're working toward.

Examination Structure
3 Stages
Prelims → Mains → Interview
A multi-stage process that screens, then tests depth, then assesses personality.
2 Prelims Papers
9 Mains Papers
20+ Services to Join
UPSC at a glance

Understand the exam

The Civil Services Examination is conducted in stages. Candidates progress through each stage based on the prescribed examination rules.

01

Preliminary Exam

Objective-type screening examination consisting of two papers.

02

Main Exam

Written examination consisting of qualifying and merit papers.

03

Personality Test

Candidates who qualify the written stage proceed to the interview.

04

Service Allotment

Final rank and preferences decide which service and cadre you join.

Exam journey

Three stages of UPSC CSE

01

Prelims

Screening stage conducted through objective-type papers.

  • General Studies Paper I
  • General Studies Paper II
  • Objective-type questions
  • GS Paper II is qualifying
02

Mains

Descriptive written examination designed to assess depth and analytical understanding.

  • Essay
  • General Studies papers
  • Optional subject papers
  • Qualifying language papers
03

Interview

Personality Test conducted for candidates who qualify the written stage.

  • Personality assessment
  • General awareness
  • Communication
  • Analytical approach
Syllabus

Explore the UPSC syllabus

Switch between Prelims, Mains General Studies, and other important components.

Preliminary Examination

The Preliminary Examination consists of two objective-type papers.

Current AffairsNational and international current events.
HistoryIndian history and national movement.
GeographyIndian and world geography.
PolityIndian Constitution, political system and governance.
EconomyEconomic and social development.
EnvironmentEcology, biodiversity and climate-related issues.
General ScienceGeneral science and scientific developments.
CSATComprehension, reasoning, aptitude and decision making.

General Studies – Mains

The Mains examination contains four General Studies papers.

GS Paper IIndian heritage and culture, history, geography and society.
GS Paper IIGovernance, Constitution, polity, social justice and international relations.
GS Paper IIITechnology, economic development, biodiversity, environment, security and disaster management.
GS Paper IVEthics, integrity and aptitude.

Essay Paper

Candidates are required to write essays on selected topics. The paper assesses clarity of thought, relevance and structured presentation.

Social IssuesSociety, education, health and social development.
GovernanceAdministration, democracy and public policy.
EconomyDevelopment, growth and economic challenges.
Philosophical ThemesAbstract and thought-provoking themes.

Optional Subject

Candidates choose one optional subject consisting of two papers.

Agriculture Anthropology Commerce & Accountancy Economics Geography History Law Management Political Science Psychology Public Administration Sociology Statistics Zoology Literature Subjects
Exam pattern

Know the paper structure

Stage Paper Type Purpose
Prelims GS Paper I Objective Screening
Prelims GS Paper II / CSAT Objective Qualifying
Mains Essay Descriptive Merit
Mains General Studies I–IV Descriptive Merit
Mains Optional Subject I & II Descriptive Merit
Mains Language Papers Descriptive Qualifying
Interview Personality Test Interview Final stage
Mains examination

Mains papers

Paper A

Indian Language

Qualifying language paper.

Paper B

English

Qualifying English language paper.

Paper I

Essay

Essay writing and structured expression.

Paper II

General Studies I

Indian heritage, culture, history, society and geography.

Paper III

General Studies II

Governance, Constitution, polity and international relations.

Paper IV

General Studies III

Economy, technology, environment, security and disaster management.

Paper V

General Studies IV

Ethics, integrity and aptitude.

Paper VI & VII

Optional Subject

Two papers from the selected optional subject.

Where it leads

Services you can join

Your final rank and service preferences decide which of these you're allotted. Roughly two dozen services are filled through this one examination.

All India Services

Postings rotate across state and central cadres
IAS

Indian Administrative Service

District administration, state secretariats and central ministries.

IPS

Indian Police Service

Leadership roles in state police forces and central police organisations.

IFoS

Indian Forest Service

Forest and wildlife management; recruited via a linked exam using CSE prelims.

Central Civil Services — Group A

Postings mostly under central government ministries
IFS

Indian Foreign Service

Diplomacy, embassies and foreign policy.

IRS

Indian Revenue Service

Income tax and customs & indirect tax administration.

IPoS

Indian Postal Service

Management of the postal network and its business operations.

IRTS

Indian Railway Traffic Service

Traffic and commercial operations across the railway network.

IRAS

Indian Railway Accounts Service

Financial management of railway operations.

IDAS

Indian Defence Accounts Service

Financial management for defence establishments.

IAAS

Indian Audit & Accounts Service

Government audit under the Comptroller and Auditor General.

ICAS

Indian Civil Accounts Service

Civil accounting and payments across ministries.

ICLS

Indian Corporate Law Service

Regulation of companies and corporate governance.

IDES

Indian Defence Estates Service

Management of defence land and cantonment estates.

IIS

Indian Information Service

Government media, publicity and public communication.

ITS

Indian Trade Service

Trade promotion and commercial policy.

Group B services

Typically union territory cadres
DANICS

Delhi, Andaman & Nicobar Islands Civil Service

Civil administration in Delhi and the Andaman & Nicobar Islands.

DANIPS

Delhi, Andaman & Nicobar Islands Police Service

Police leadership roles in the same union territories.

PCS

Pondicherry Civil & Police Service

Civil and police administration in Puducherry.

Selection trends

Recent vacancies

Vacancy numbers change every year and are set by the government departments, not UPSC itself. The figures below are a rough recent-year guide — always confirm the current count against the official notification for the year you're applying to.

Exam year Vacancies notified Candidates recommended
CSE 2021 ~712 ~685
CSE 2022 ~1,022 ~861
CSE 2023 ~1,105 ~1,016
CSE 2024 Check latest notification Check latest result

These figures are approximate and meant to show the general trend, not to be quoted as fact — please verify the exact numbers on the official UPSC website before relying on them.

Eligibility

Basic requirements

Always refer to the latest official UPSC notification for the applicable eligibility conditions.

Educational Qualification

Candidates should possess the prescribed degree qualification or equivalent qualification as specified in the notification.

Age Requirement

Age limits and relaxations are prescribed by the official examination notification.

Nationality

Nationality requirements depend on the service and are specified in the official UPSC notification.

FAQ

Frequently asked questions

UPSC Civil Services Examination is a national-level competitive examination conducted for recruitment to various civil services of the Government of India.
The examination process consists of Preliminary Examination, Main Examination and Personality Test.
Yes. General Studies Paper II, commonly called CSAT, is part of the Preliminary Examination and is qualifying.
Candidates select one optional subject for two papers in the Main Examination from the subjects prescribed by UPSC.
There is overlap in several broad areas, but Prelims is objective and screening-oriented while Mains requires descriptive answers and broader analytical preparation.
Around two dozen services, including the IAS and IPS (All India Services) and central Group A/B services such as the Indian Foreign Service, Indian Revenue Service and Indian Postal Service. Your final rank and choice of service preferences decide the allotment.
It varies year to year and is decided by the government, not UPSC. Recent years have ranged from roughly 700 to over 1,000 vacancies — always check the current year's official notification for the exact figure.

Start your UPSC preparation

Build your preparation around the syllabus, understand the examination stages and develop a consistent study strategy.

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