Generally the Staff Selection Commission is responsible for to conducts CBI Central Bureau of Investigation examination.

Qualification:
Candidates have Degree of a recognized University or equivalent.

Age:
20 - 25 years.

CBI Sub Inspectors Exam Paper Pattern:

The Examination is conducted in three stages are:

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.