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UPSC CSAT Syllabus 2027 for Prelims Paper II

The UPSC CSAT Syllabus 2027 provides a framework for assessing the aptitude and problem-solving skills required in the Civil Services Examination. The syllabus includes comprehension, communication skills, logical reasoning, analytical ability, decision-making, general mental ability, basic numeracy, and data interpretation.
UPSC Prelims Syllabus
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UPSC CSAT Syllabus 2026

UPSC Civil Services Aptitude Test (CSAT) forms Paper II of the UPSC Preliminary Examination. Introduced to assess a candidate’s aptitude, reasoning ability, analytical skills, and comprehension, CSAT plays a crucial role in the prelims stage. While the paper is qualifying in nature, you must achieve the prescribed qualifying score to ensure that your General Studies Paper I marks are considered for further stages of the examination.

 A clear understanding of the UPSC CSAT Syllabus 2027 helps you identify important topics, prioritise preparation, and improve accuracy in the exam. The syllabus broadly covers comprehension, interpersonal communication skills, logical reasoning, analytical ability, decision-making, basic numeracy, and data interpretation.

UPSC CSAT Syllabus 2027: Topic-wise Coverage

The UPSC CSAT syllabus evaluates your aptitude, reasoning ability, comprehension skills, and numerical proficiency. Understanding the topics prescribed under each component helps you create a focused preparation strategy and prioritise areas that require regular practice. The table below outlines the major sections and topics included in the UPSC CSAT Syllabus 2027:

UPSC CSAT Component

Topics Covered

Comprehension

  • Reading Comprehension

  • Passage Analysis

  • Central Idea Identification

  • Drawing Inferences

  • Understanding Arguments

  • Vocabulary in Context

Interpersonal Skills, including Communication Skills

  • Verbal Communication

  • Information Interpretation

  • Interpersonal Understanding

  • Communication Processes

  • Effective Information Exchange

Logical Reasoning and Analytical Ability

  • Analogy

  • Classification

  • Series

  • Coding-Decoding

  • Syllogism

  • Statements and Conclusions

  • Statements and Assumptions

  • Cause and Effect

  • Analytical Reasoning

  • Clocks and Calendars

  • Cubes and Dice

  • Logical Puzzles

Decision-Making and Problem-Solving

  • Situational Judgement

  • Decision-Based Scenarios

  • Problem Analysis

  • Alternative Evaluation

  • Conflict Resolution

General Mental Ability

  • Averages

  • Partnership

  • Profit and Loss

  • Simple and Compound Interest

  • Time and Work

  • Work and Wages

  • Trains

  • Boats and Streams

  • Pipes and Cisterns

  • Time and Distance

Basic Numeracy

  • Number System

  • LCM and HCF

  • Rational Numbers

  • Decimal Fractions

  • Ratio and Proportion

  • Percentages

  • Simplification

  • Divisibility Rules

  • Surds and Indices

  • Square Roots and Cube Roots

  • Probability

  • Geometry

  • Mensuration

Data Interpretation and Data Sufficiency

  • Table Charts

  • Bar Charts

  • Pie Charts

  • Graph-Based Questions

  •  Data Comparison

  • Data Sufficiency

  • Arithmetical Reasoning

  • Numerical Analysis

Also Check UPSC CSAT PYQ PDFs with Answers

Recommended Books for UPSC CSAT Preparation

Selecting the right study material can make CSAT preparation more effective. You should focus on resources that strengthen conceptual understanding, improve problem-solving skills, and provide sufficient practice for comprehension, reasoning, and aptitude-based questions. 

Book

Author/Publication 

Quantitative Aptitude for Competitive Examinations

R.S. Aggarwal

Analytical Reasoning

M.K. Pandey

CSAT Manual

Tata McGraw Hill

General Studies Paper II Manual

Pearson

UPSC CSAT Previous Year Papers

Various Publications

 

UPSC CSAT Syllabus 2027 FAQs

Is CSAT qualifying in UPSC Prelims?

Yes, CSAT is a qualifying paper, and you must secure the minimum qualifying marks prescribed by UPSC.

What subjects are covered in the UPSC CSAT syllabus?

The syllabus includes comprehension, logical reasoning, analytical ability, decision-making, basic numeracy, general mental ability, and data interpretation.

Is the mathematics level in CSAT difficult?

Most numerical questions are based on concepts generally studied up to the Class 10 level.

Does UPSC change the CSAT syllabus every year?

The core syllabus generally remains the same, but you should always refer to the latest UPSC notification.

Which area requires maximum practice for CSAT?

Comprehension, reasoning, and numerical aptitude require regular practice to improve speed and accuracy.
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