UPSC CSE Prelims · CSAT (GS Paper II) · Year-Wise
UPSC CSAT PYQs Year-Wise (2015–2026): Full GS Paper II Practice
Every CSAT paper since it became qualifying in 2015, kept whole and arranged by year. Sit them as complete papers, learn how to spend your two hours, and make sure you clear the 66-mark line with room to spare.
Find out where you stand
Sit the latest CSAT paper in one go and see how far above the qualifying line you land.
CSAT is the paper many aspirants plan to "manage somehow". It is only qualifying, after all. But the qualifying mark is a hard gate: fall below it and your GS Paper I result simply does not count. Some well-prepared candidates have learnt this the hard way.
Year-wise CSAT papers are the most direct protection against that risk. This guide explains how to use them, from a first diagnostic attempt to a steady rhythm of full papers, and how to manage the two hours so that nerves and one stubborn maths question do not cost you the exam.
Table of Contents
What Is at Stake in CSAT
CSAT, formally GS Paper II, was introduced in 2011. Since 2015 it has been qualifying: 80 questions, 200 marks, two hours, and you need at least 33 percent, which is 66 marks. Wrong answers cost one-third of the marks for that question.
A Hard Gate
Marks above 66 add nothing to your rank, but marks below it end your Prelims attempt for that year.
Day-to-Day Swings
CSAT performance can vary a lot between attempts. One good practice paper does not prove you are safe.
Same-Day Fatigue
CSAT is sat on the same day as GS Paper I, usually after it, when your concentration is already stretched.
Full year-wise papers address all three: they show whether you clear the line consistently, and they train you to perform when you are tired.
Make CSAT a safe paper
Test yourself on real papers long before exam day.
Start with One Diagnostic Paper
Before you plan any CSAT preparation, sit one recent paper under exam conditions. Your result tells you how much time CSAT needs in your overall plan.
| Where you land | What it suggests |
|---|---|
| Well above 66 | Keep in touch with a full paper every few weeks |
| Just above 66 | You are at risk; add regular practice on your weakest area |
| Below 66 | Give CSAT fixed weekly hours now, not in the final months |
Also note where the marks came from. Some aspirants clear the line almost entirely through comprehension; others rely on numeracy and reasoning. Knowing your natural strength tells you where to begin in the paper and what to build up.
Take your diagnostic paper
Choose the most recent year and attempt it without breaks.
How CSAT Papers Have Varied Since 2015
The syllabus has stayed the same: comprehension; interpersonal skills including communication skills; logical reasoning and analytical ability; decision making and problem solving; general mental ability; and basic numeracy and data interpretation at Class X level. What has varied is the balance and the difficulty.
- The mix shifts. Some years lean more on reading passages, others on numeracy and reasoning.
- Difficulty is uneven. Papers have differed noticeably in how hard they felt, and some recent papers have been widely considered tougher than earlier ones.
- Passages vary in style. Some are short and direct; others are dense and ask for careful inference.
The practical lesson is to solve papers across the whole 2015–2026 range. If you only practise one or two easier years, a harder paper on exam day can come as a shock.
Prepare for the hard years too
Mix recent and earlier CSAT papers in your practice.
Sitting a CSAT Paper Under Exam Conditions
Set Up Like the Real Thing
- Sit for the full two hours without a break or a phone.
- Use only rough paper for calculations; calculators are not allowed in the exam.
- Mark answers on a separate sheet, as you would on the OMR sheet.
Recreate the Fatigue
Once or twice before the exam, sit a GS Paper I paper in the morning and a CSAT paper in the afternoon of the same day. It is the only way to find out how your accuracy holds up when you are already tired.
Stop on Time
Finish exactly at two hours. Unattempted questions are useful information about your pace, and pretending you had ten extra minutes hides the real problem.
Rework Before You Move On
After checking your answers, rework every numeracy or reasoning question you got wrong from scratch, on fresh paper, before looking at anyone else's method. For comprehension errors, go back to the passage and find the exact line that rules out the option you chose. This slow, honest rework is where most of the improvement from a full paper comes from; a paper attempted and then forgotten teaches you very little.
Book your practice slot
Pick a CSAT year and sit it at the same hour as the real paper.
Planning Your Two Hours
The most common CSAT failure is not a lack of ability but time lost on a few hard questions. A round-based plan protects you.
| Round | What to do |
|---|---|
| First round | Your strongest area first, answering only questions you can solve quickly |
| Second round | The rest of the paper, skipping anything that stalls you for more than a couple of minutes |
| Final round | Return to skipped questions only if they now look manageable |
Common Time Traps
- Refusing to leave a maths question after investing five minutes in it.
- Reading a long passage twice before looking at its questions.
- Guessing wildly near the end, forgetting that wrong answers cost marks.
Try different orders across papers, for example passages first in one and reasoning first in the next, and keep the one that gives you the safest result.
Test a new order of attack
Use the round-based plan on your next CSAT paper.
Tracking Your Margin Above the Qualifying Line
For CSAT, the number that matters is not your total but your margin above 66. Keep a small log after every paper you sit:
| Column | What to record |
|---|---|
| Paper year | The CSAT year you attempted |
| Net marks | After deducting negative marking |
| Margin | Net marks minus 66 |
| Marks by area | Comprehension, reasoning and numeracy, counted separately |
| Time lost | Questions where you got stuck for too long |
Aim for a margin you can hit even on a bad day. If your margin swings widely from paper to paper, focus on consistency before trying to push your best result higher.
Add a line to your log
Sit another year this week and record your margin.
Fitting Year-Wise CSAT Papers into Your Plan
- At the start: one diagnostic paper to decide how much time CSAT needs.
- Through the year: a full paper every two to four weeks if you are comfortable, or weekly if you are near or below the line.
- Final two months: regular full papers, including a few same-day pairings with GS Paper I.
- Last week: one or two light papers only, to keep your rhythm without draining your confidence.
Do not save every paper for the end. Leave a few recent years unseen for the final month, so you have fresh papers for your last rehearsals.
Frequently Asked Questions
Answer the big question first
Are you safely above the line? One paper will tell you.
Sit Your First CSAT Paper This Week
CSAT rarely decides your rank, but it can decide whether you have one. Twelve years of qualifying-era papers, from 2015 to 2026, give you everything you need to find your level, plan your two hours and build a margin that holds on a bad day. Start with one paper, keep an honest log, and make CSAT the paper you never have to worry about.
Your next two hours
Sit the most recent CSAT paper under exam conditions and note your margin above 66.