Introduction
The UPSC Civil Services Examination (CSE) 2025 is India’s toughest and most prestigious competitive exam conducted by the Union Public Service Commission. Every year, lakhs of aspirants prepare for IAS, IPS, IFS, IRS, and other central civil services. This article provides UPSC CSE 2025 syllabus, exam pattern, eligibility, and preparation tips in a detailed format to help aspirants start their preparation.
⭐ UPSC CSE 2025: Exam Stages Explained
The UPSC exam is conducted in three stages, each with a different purpose:
1️⃣ UPSC Prelims Exam
- Objective (MCQ)
- Screening test
- Two papers: GS Paper 1 and CSAT
2️⃣ UPSC Mains Exam
- Descriptive/Essay-writing format
- 9 papers (7 counted for merit)
3️⃣ Interview/Personality Test
- Interaction with UPSC Board
- Tests candidate’s confidence, decision-making, ethics, personality
⭐ UPSC Prelims Detailed Syllabus 2025

📌 General Studies Paper 1 (GS1)
Includes:
- Indian History & National Movement
- World & Indian Geography
- Indian Polity & Constitution
- Indian Economy
- Environment, Ecology, Biodiversity
- Science & Technology
- Current Affairs (last 1 year)
📌 CSAT (General Studies Paper 2)
Tests aptitude & reasoning:
- Logical reasoning
- Analytical skills
- Data interpretation
- Reading comprehension
- Basic numeracy (Class 10 level)
⭐ UPSC Mains Exam Detailed Syllabus
Paper 1: Essay
Write 2 long essays on social, political, environmental topics.
General Studies Papers
GS Paper 1
- Indian culture, art forms
- Modern Indian history
- Post-independence consolidation
- Geography
- Indian society
GS Paper 2
- Governance
- Constitution, polity
- International relations
- Social justice schemes
GS Paper 3
- Economy
- Agriculture
- Disaster management
- Environment & biodiversity
- Science & technology
GS Paper 4 (Ethics)
- Integrity
- Emotional intelligence
- Case studies
Optional Subject (One)
Candidates select 1 subject out of 48 options including:
- Public Administration
- Sociology
- Geography
- Literature subjects
- History
- Psychology
- Political Science
and more.
⭐ Conclusion
UPSC CSE 2025 demands consistency, reading newspapers, and solving mock tests. Follow the updated syllabus and start early.

