UPSC CSAT Syllabus 2027: Topics, Exam Pattern & PDF Download

Class X-level maths and reasoning can still feel unpredictable when you are unsure which CSAT topics will actually appear. Many aspirants either spend too long on CSAT or ignore it until a low score puts their Prelims result at risk.

PW offers online UPSC batches with live classes, recorded lectures, mock tests and practice questions, so you can practise CSAT topics alongside General Studies. Use the topic list, exam pattern and qualifying criteria below to plan your CSAT preparation around what the paper tests.

UPSC CSAT Syllabus (Paper 2)

CSAT, short for Civil Services Aptitude Test, is General Studies Paper II of the UPSC Civil Services Preliminary Examination. It was introduced in 2011 to test the analytical skills, reasoning ability and aptitude of aspirants. The UPSC CSAT Paper 2 syllabus covers the following seven areas:

• Comprehension;

• Interpersonal skills including communication skills;

• Logical reasoning and analytical ability;

• Decision making and problem solving;

• General mental ability;

• Basic numeracy: Numbers and their relations, orders of magnitude and other Class X-level mathematics.
• Data interpretation: Charts, graphs, tables and data sufficiency at the Class X level.

• Qualifying marks: CSAT is a qualifying paper, and candidates must score at least 33% (66 out of 200 marks).

• Question format: The paper contains objective-type multiple-choice questions.

• Attendance requirement: Candidates must appear in both General Studies Paper I and CSAT Paper II. Failure to appear in either paper results in disqualification from the Prelims evaluation.

UPSC CSAT Syllabus PDF Download

Candidates can download the UPSC CSAT Syllabus PDF to check the official Paper II topics, exam pattern, and qualifying marks. The syllabus covers comprehension, logical reasoning, analytical ability, decision-making, problem-solving, general mental ability, basic numeracy, and data interpretation. Download the PDF to understand the syllabus and plan your CSAT preparation effectively.

UPSC CSAT Exam Pattern

CSAT is one of the two papers in Prelims. The UPSC Prelims exam pattern for Paper II is as follows:

For every incorrect answer, one-third of the marks assigned to that question is deducted. For a question carrying 2.5 marks, the penalty is approximately 0.83 marks. Selecting more than one answer is treated as an incorrect response and attracts the same penalty. No marks are deducted for unanswered questions.

PW UPSC IAS Online Batches

UPSC CSAT vs GS Paper 1

The two Prelims papers test different things and carry different weight in the result.

Your General Studies Paper I score decides whether you reach Mains, so give it the larger share of your study time. 

How to Prepare for the CSAT Syllabus?

A topic-wise routine works better than solving random papers. You can use this approach:

• Comprehension: Read passages regularly and answer the questions using only what the passage says.

• Basic numeracy: Revise Class X-level arithmetic, such as numbers, ratios, percentages and averages, and practise solving without a calculator.

• Data interpretation: Practise questions based on charts, graphs, tables and data sufficiency.

• Reasoning and decision making: Solve a few questions daily, and compare every option against the situation before choosing one.

• Timing: In 120 minutes, you have about 1.5 minutes per question. Skip lengthy questions first and return to them later.

• Practice: Solve previous year papers to learn the question types, then take full-length mock tests to check your accuracy under time pressure.

• Negative marking: Review your wrong answers after every test and follow tips to reduce UPSC negative marks.

The UPSC CSAT syllabus covers comprehension, reasoning, decision making, Class X-level numeracy and data interpretation, and you need 33% to qualify. PW’s online UPSC batches, with live classes, recorded lectures, mock tests and practice questions, can support your CSAT practice. Before you finalise your plan, check the latest UPSC notification for any change to the syllabus or pattern.