The examination is held generally once a year for the post of Sub-Inspectors of Police in Central Bureau of Investigation.

The examination is held generally in the month of February 
Blank application forms and other particulars are published in the Employment News usually in the month of October of the last year. The last date for submission of applications is usually first week of November of last year.

Age: 

20-25 years as on lst 4anuary of the year of examination. The upper age limit may be relaxed in respect of the Scheduled Castes, Scheduled Tribes, Other Backward Classes and such other categories of persons as may from time to time be notified in this behalf by the Government of India to the extent and subject to the conditions notified in respect of each category.

Educational Qualifications: 

Degree of a recognized University or equivalent.

Plan of the Examination: 

The examination wills consists Old Pattern Exam. of two parts:

Part I

Written Examination carrying: 400 marks 

Part II

Personality Test (Interview): 100 marks.

Examination Subjects: 

The subjects of the written examination, the maximum marks and time allowed for each subject will be as given below:

Paper No. Subject Questions Max Marks Duration 

Paper-I General Test

General Intelligence and Reasoning 50 
General Awareness 75 200 2 hours Numerical Ability 75 

Paper-II English Language

Language Comprehension
Communication/Writing 200 2 hours 
Ability Test

Note:

The questions in all the three parts of Paper I will consist of OBJECTIVE-cum-multiple choice.