Sub-Inspector (CBI) 2025 Syllabus PDF + Topic-Wise Weightage

 

If you’re aiming for a prestigious career in the Central Bureau of Investigation (CBI) as a Sub-Inspector (SI), understanding the CBI SI 2025 syllabus and topic-wise weightage is your first step toward success. This detailed guide will help you know what to study, how to plan your preparation, and where to find reliable resources — including free study materials at JobSafal.com.

About the CBI Sub-Inspector Exam 2025

The Sub-Inspector in CBI post is one of the most sought-after positions under the Staff Selection Commission (SSC CGL) recruitment. Candidates are selected based on their performance in Tier-1, Tier-2, Tier-3 (Descriptive), and Tier-4 (Skill/Document Verification) stages.

The role demands strong analytical, logical, and communication skills — so preparing strategically as per the official syllabus is key.

CBI Sub-Inspector 2025 Syllabus Overview

The syllabus for CBI Sub-Inspector 2025 broadly covers four major sections:

  1. General Intelligence & Reasoning

  2. General Awareness

  3. Quantitative Aptitude

  4. English Comprehension

Let’s look at each section in detail along with the topic-wise weightage and important areas to focus on.

1. General Intelligence & Reasoning

This section tests your logical ability and problem-solving speed.

Important Topics:

  • Analogy and Classification

  • Coding–Decoding

  • Series (Alphabet, Number, and Mixed)

  • Blood Relations

  • Direction Sense Test

  • Syllogism

  • Statement and Conclusions

  • Venn Diagrams

  • Matrix and Puzzles

  • Non-Verbal Reasoning

Weightage: 25 Marks
Preparation Tip: Practice previous years’ SSC CGL reasoning questions from reliable sources like JobSafal.com for better accuracy.

2. General Awareness

This section checks your general knowledge of national and international events.

Important Topics:

  • History, Geography, and Polity of India

  • Indian Economy and Budget

  • Science and Technology

  • Awards and Sports

  • Current Affairs (Last 6–12 Months)

  • Static GK

Weightage: 25 Marks
Preparation Tip: Regularly read daily current affairs and static GK updates on JobSafal.com to stay exam-ready.

3. Quantitative Aptitude

This is one of the most scoring yet challenging sections in the exam.

Important Topics:

  • Number System

  • Simplification and Approximation

  • Percentage, Ratio, and Proportion

  • Time, Speed, and Distance

  • Time and Work

  • Simple and Compound Interest

  • Profit and Loss

  • Geometry, Mensuration, and Trigonometry

  • Data Interpretation (DI)

Weightage: 25 Marks
Preparation Tip: Revise all basic formulas and practice high-difficulty problems daily. You can find topic-wise Quantitative Aptitude materials on JobSafal.com.

4. English Comprehension

This section evaluates your grammar, vocabulary, and comprehension ability.

Important Topics:

  • Reading Comprehension

  • Cloze Test

  • Error Spotting

  • Sentence Improvement

  • Fill in the Blanks

  • Synonyms and Antonyms

  • Idioms & Phrases

Weightage: 25 Marks
Preparation Tip: Read English editorials daily and attempt quizzes to strengthen your grasp over grammar and vocabulary.

CBI Sub-Inspector 2025 Tier-2 Syllabus

After qualifying Tier-1, candidates must appear for Tier-2, which includes:

  1. Quantitative Abilities (Paper-1) – 200 Marks

  2. English Language and Comprehension (Paper-2) – 200 Marks

  3. Statistics (Paper-3) – 200 Marks (for certain posts)

  4. General Studies (Finance & Economics) (Paper-4) – 200 Marks (for specific posts)

For the CBI Sub-Inspector post, Paper-1 and Paper-2 are compulsory.

CBI Sub-Inspector Topic-Wise Weightage Summary

SectionKey TopicsApprox. Weightage
General Intelligence & ReasoningAnalogy, Coding, Syllogism, Puzzles25 Marks
General AwarenessCurrent Affairs, Polity, Economy25 Marks
Quantitative AptitudeArithmetic, Algebra, Geometry25 Marks
English ComprehensionGrammar, Vocabulary, Comprehension25 Marks

CBI SI 2025 Preparation Tips

  • Follow a daily study routine and focus more on weak areas.

  • Attempt mock tests and quizzes regularly on JobSafal.com.

  • Stay updated with daily current affairs and revise monthly compilations.

  • Focus on concept clarity rather than rote learning.

  • Solve previous year question papers to understand exam trends.

Download CBI Sub-Inspector 2025 Syllabus PDF

To make your preparation easier, we’ve compiled a free downloadable PDF of the complete CBI Sub-Inspector 2025 Syllabus and Topic-Wise Weightage.
👉 Visit JobSafal.com to download it instantly and begin your structured preparation today!


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