UPSC Civil Services Prelims at a glance
The Civil Services Examination, conducted by the Union Public Service Commission (UPSC), is the route to the Indian Administrative Service, the Indian Foreign Service, the Indian Police Service and other central services. It has three stages: the Preliminary Examination (Prelims), the Main Examination (Mains) and the Personality Test (interview). Prelims is a screening test: its marks decide who is called for Mains, and they are not counted in the final ranking. Because only a fraction of candidates who appear are shortlisted, the Prelims paper is competitive and the margins are narrow.
| Detail | Civil Services (Preliminary) Examination 2026 |
|---|---|
| Conducted by | Union Public Service Commission |
| Notification | Examination Notice No. 05/2026-CSE, dated 4 February 2026 |
| Date held | 24 May 2026 |
| Papers | Two objective-type (multiple-choice) papers, 400 marks in all |
| Paper I: General Studies | 100 questions, 200 marks, 2 hours; counted for the Mains shortlist |
| Paper II: CSAT | 80 questions, 200 marks, 2 hours; qualifying, with a minimum of 33% |
| Negative marking | One-third of the marks assigned to the question for each wrong answer |
The figures come from the 2026 examination notice and published summaries of the pattern. UPSC announces the pattern with each year's notice, normally early in the year, so check the notice for your cycle. For the year ahead, the notification is usually published in the first quarter and Prelims is held in May or June.
Who takes UPSC and eligibility basics
The exam is open to graduates in any discipline. The notice specifies the nationality requirement, the age limits, the number of attempts permitted (which depends on category) and other conditions. In broad terms, the general category has had a minimum age of 21, a maximum age of 32 and a limit of six attempts, with relaxations for reserved categories and some other groups, but these figures are set in each year's notice and can change. Read the current notice rather than relying on a summary.
The two papers and what each tests
Paper I: General Studies
Paper I covers current events of national and international importance; the history of India and the Indian national movement; Indian and world geography; Indian polity and governance; economic and social development; environmental ecology, biodiversity and climate change; and general science. The questions are multi-statement, matching and assertion types, with options that are designed to be close. See the GS Prelims page.
Paper II: CSAT
The Civil Services Aptitude Test covers comprehension; interpersonal skills including communication; logical reasoning and analytical ability; decision-making and problem-solving; general mental ability; basic numeracy and data interpretation at about Class X level; and English language comprehension at about Class X level. It is a qualifying paper: you need at least 33% (66 out of 200) for your Paper I marks to be considered. See the CSAT page.
Why mock tests are central to Prelims preparation
Prelims does not reward knowing the most facts. It rewards the ability to choose the best option among several that look plausible, and to leave a question when you cannot. Reading builds the knowledge; only practice under the clock builds the judgement. A mock gives you three things:
- A calibration of your confidence. If your "sure" answers are right 90% of the time and your "guess" answers 30%, you know how much to attempt.
- A map of half-knowledge. Questions where you knew two of four statements are the costliest errors, and a mock finds them.
- A rehearsal of stamina. Two hours of dense multi-statement reading for GS, and then CSAT on the same day if you are sitting both back to back.
Syllabus areas for GS Paper I
| Area | Typical themes | How it is tested |
|---|---|---|
| History and culture | Ancient, medieval and modern India; national movement; art, architecture and culture | Statements on events, personalities, policies, monuments |
| Polity and governance | Constitution, institutions, rights, amendments, local government, governance schemes | Statement-based questions on articles, provisions and bodies |
| Geography | Physical, human and economic geography of India and the world | Maps, locations, phenomena, resources |
| Economy | Basic concepts, banking, budget, external sector, poverty and inclusion | Concepts and current developments |
| Environment | Ecology, biodiversity, climate change, conventions, species and protected areas | Concepts, conventions, species, current events |
| Science and technology | General science, space, biotechnology, defence and IT | Concepts and applications |
| Current affairs | National and international events of the past year | Linked to static topics |
The official syllabus is in the UPSC notice, and the exact weight of each area changes from year to year.
Types of mock tests and when to use each
| Type | Typical length | Best used for |
|---|---|---|
| Topic tests | 15-25 questions | Checking a topic right after reading it; spotting half-knowledge |
| Subject tests | 25-50 questions | Building accuracy and elimination skill in a subject |
| Current affairs tests | 20-30 questions | Revising the last months of news |
| Full-length GS tests | 100 questions, 2 hours | Pace, stamina and attempt policy |
| CSAT tests | 80 questions, 2 hours; or sectional | Securing the qualifying mark |
The plan for using them is in the UPSC mock test strategy.
Free and paid UPSC mocks
Free tests are useful for a baseline and for sampling an institute's style; paid series usually offer a larger number of full papers, topic-wise tests, and explanations with references. The test list below shows what is currently published on TestMint, and the free UPSC mock tests page explains how to use a free attempt. For what to look for, read what makes a good mock test.
Test-taking strategy for GS Paper I
You have 120 minutes for 100 questions, about 72 seconds each. The standard approach is three rounds. In the first round, answer questions where you are confident, in about 60 to 70 minutes. In the second, return to the questions where you can eliminate two options and decide between the rest, in about 35 to 40 minutes. In the third, with the time left, consider the remaining questions and decide which, if any, to answer. Keep ten minutes for transferring answers and checking. Within each question, read multi-statement items statement by statement and mark each as true, false or unsure before you read the options.
Negative marking: the arithmetic and a policy
A correct answer in Paper I earns 2 marks; a wrong answer costs one-third of that, or about 0.67 marks. So the break-even accuracy for an attempt is 25%: at that accuracy you gain as much from right answers as you lose from wrong ones. If you can eliminate one option, your chance of being right rises to a third and the expected value of an attempt is positive: (⅓ × 2) − (⅔ × 0.67) = +0.22 marks. With two options eliminated it is +0.67 marks, and with no elimination it is zero. The principle is to answer when you can honestly eliminate options, and to leave questions where you cannot. Test your own record by tagging each answer during your mocks, as explained in how to use mock tests for UPSC and our negative marking guide.
Analysing a UPSC mock
| Cause | What it looks like | What to do next |
|---|---|---|
| Did not know | No recognition of the topic | Add to notes; read the source; retest in a week |
| Half-knowledge | Two of four statements right; wrong option chosen | Revise the whole topic, not just the fact |
| Misread | Missed "not", "only" or "incorrect" in the stem or in a statement | Underline operative words before the options |
| Over-elimination | Eliminated a correct option on a false belief | Check where the false belief came from; correct the source |
| Guess | Marked with no elimination | Apply your attempt policy |
| Time pressure | Rushed the last 15 questions | Practise the three-round plan |
Half-knowledge errors are usually the most important, because they are where the penalty bites. See how to review incorrect questions and how to build an error log.
Common mistakes in Prelims preparation
- Reading widely without testing. Retrieval, not rereading, converts reading into marks.
- Taking tests without reviewing them. A test without review gives a score, not an improvement.
- Neglecting CSAT until a poor score threatens the qualifying line.
- Treating current affairs as a separate subject. Link each item to a static topic.
- Attempting everything or nothing. Either policy ignores your own accuracy data.
- Changing the strategy in the last week. Fix your plan by the last month.
A preparation timeline using mocks
Eight to six months before Prelims: read and take topic tests; one diagnostic full paper. Six to four months: subject tests; begin a current-affairs routine. Four to two months: a full-length GS test every week and a CSAT test every fortnight, with a full day of review. The last two months: two tests a week at most, using your error log, and weekly current-affairs revision. The last week: a final test four or five days before, light revision and rest. Because the notice is normally released early in the year, build your plan backwards from the likely date. For shorter horizons see the 30-day plan and the last-week plan.
Related reading
For the paper structure in detail see the UPSC Prelims exam pattern. For the review method read how to use mock tests for UPSC preparation and a daily reading comprehension routine for CSAT. Practise by paper: General Studies Prelims and CSAT.
Official information: the UPSC examination notice on upsc.gov.in is the authority for the pattern, syllabus, eligibility and dates. This page was checked in October 2026; please confirm every detail in the notice for your cycle.
