Intelligence Bureau is India’s internal intelligence agency. It was formed in 1887.

It comes under Ministry of Home Affairs.
It’s headquarter is situated in New Delhi, India.

As you have asked about the eligibility criteria for IB, check information below
Candidates who want to join Intelligence bureau should have a bachelor’s degree from a recognized university.
Commerce or any graduate can join IB as an Assistant Central Intelligence Officer.

The maximum age limit for the exam is 27 years, with slackening of up to 5 years for SC/ST and 3 years for OBC
The recruitment notification is published in the “Employment News” and the application must be sent within the required time.
The selection happen through written examination and interview
After pursuing your B.Com you will be eligible for the exam
Syllabus of the recruitment exam

Paper I: Objective type

General Knowledge
Quantitative Ability
English Language
Reasoning Abilities

Paper II: Descriptive type

a. Essay
b. Precis writing

After obtaining the minimum marks, the applicants are called for an interview.