UPSC CSE Prelims — Complete Guide

About the UPSC Civil Services Examination

The Union Public Service Commission Civil Services Examination (UPSC CSE) is the most prestigious competitive examination in India. It is conducted annually to recruit officers for the Indian Administrative Service (IAS), Indian Police Service (IPS), Indian Foreign Service (IFS), Indian Revenue Service (IRS), and over 20 other Group A and Group B Central Services. The examination is conducted in three stages — Preliminary, Main, and Personality Test (Interview).

UPSC Prelims — Exam Pattern

The Preliminary stage consists of two objective-type papers, both conducted on the same day:

  • GS Paper 1 — 100 questions, 200 marks, 2 hours. Topics: History of India & Indian National Movement, Indian and World Geography, Indian Polity & Governance, Economic & Social Development, General Issues on Environmental Ecology, Biodiversity & Climate Change, and General Science. Negative marking: 0.66 marks per wrong answer.
  • CSAT Paper 2 — 80 questions, 200 marks, 2 hours. Topics: Comprehension, Interpersonal skills including communication skills, Logical reasoning and analytical ability, Decision making and problem solving, General mental ability, Basic numeracy. This paper is qualifying in nature (minimum 33% required); marks are not counted in merit ranking.

Only candidates who clear the cut-off in GS Paper 1 (and qualify CSAT) are considered for the Main Examination. The Prelims cut-off varies each year based on the difficulty level and the total number of candidates.

How to Effectively Use This Platform for UPSC

  1. Start with Previous Year Papers. Solving 5–10 years of UPSC Prelims GS Paper 1 gives you the best picture of the question style, difficulty, and topic distribution. Use the PYQ section to attempt each paper under timed conditions.
  2. Practise Subject-wise. Once you've identified weak areas through PYQ analysis, use the Subject-wise section to drill specific topics like Polity or Environment where you are losing marks.
  3. Take Full-length Mock Tests. Regular full-length tests improve exam stamina and time management. Aim for at least 20 mock tests in the 3 months before the exam.
  4. Read Daily Quiz every day. The 10-question daily quiz takes under 10 minutes and keeps your revision consistent through busy days.
  5. Follow current affairs monthly. The Current Affairs section provides a curated summary relevant to UPSC — covering international relations, government schemes, environment, and science & technology.

FAQs — UPSC Preparation

How many attempts are allowed for UPSC CSE?

General category candidates get 6 attempts up to age 32. OBC candidates get 9 attempts up to age 35. SC/ST candidates have unlimited attempts up to age 37. Ex-Servicemen get special concessions. These limits can change with notifications — always verify from the official UPSC notification.

What is the UPSC Prelims cut-off?

The cut-off for UPSC Prelims GS Paper 1 varies every year. It typically ranges from 90–110 marks out of 200 for the General category, depending on paper difficulty. The CSAT cut-off is a fixed qualifying threshold of 33% (approximately 66 marks out of 200).

How should I distribute my study time across subjects?

Most successful candidates recommend: Polity (15%), History (20%), Geography (20%), Environment (15%), Economy (15%), Science & Technology (10%), Current Affairs (integrated throughout). CSAT should be practised separately to maintain the qualifying threshold comfortably.

Are the mock test questions original or from previous years?

The platform includes both. The PYQ section contains authentic question papers from official UPSC examinations. The Mock Test section contains original questions curated by subject experts following the UPSC syllabus and difficulty pattern.