The Central Bureau of Investigation is an agency which detects crime and helps to solve cases. It is also responsible for matters relating to the national security The CBI is controlled by the Ministry of Personnel headed by the Union Minister who reports directly to the Prime Minister of India.

Candidates who are applying for the UPSC examination must be citizens of India. They must be at least 20 years at the time of applying.

SC/ST/OBC candidates must be atleast 30 years when they apply.

The candidates who qualify in the written test will be later called for a Physical Test and Interview.

UPSC CBI exam rules







SSC CBI Sub Inspectors Exam Paper Pattern:

The Examination is conducted in three stages (tiers) as indicated below:
Tier-I: Written Examination (Objective Multiple Choice Type)
Tier-II: Written Examination (Objective Multiple Choice Type)
Tier-III: Personality Test cum Interview/Computer Proficiency Test/ Skill Test (wherever applicable)/document verification.

Tier I Exam:
General Intelligence + Reasoning=50 marks
General Awareness = 50marks
Quantitative Aptitude = 50 marks
English Comprehension =50 marks
Total Marks- 200
Duration: 02 hours

Tier II Exam:
Quantitative Abilities: 200 marks (100 Questions)
English Language & Comprehension: 200 marks.
Total Marks: 400
Total Duration: 4 hours.
This will be followed by personality test and interview of 100 marks.

Marking Scheme:
There is negative marking of 0.25 marks for every wrong answer in Tier-01.
There is negative marking of 0.50 marks for every wrong answer in paper I of Tier- 02.
There is negative marking of 0.25 marks for every wrong answer in paper II or Tier- 02.

CBI Sub Inspectors Exam Syllabus:

TIER-I Exam:
General Intelligence & Reasoning
General Awareness
Quantitative Aptitude
English Comprehension

Syllabus for TIER II Exam:
Paper-I:
Quantitative Ability

Paper-II:
English Language & Comprehension

Paper-III:
Measures of Central Tendency
Common measures of central tendency
Measures of Dispersion
Common measures dispersion
Correlation and Regression
Probability Theory
Random Variable and Probability Distributions
Sampling Theory
Statistical Inference
Analysis of Variance
Time Series Analysis
Index Numbers