How to join CBI after 12th??? What are the basic requirements??? Which entrance examination do I need to apply??

Well, you can not join the CBI (Central Bureau Of Investigation) after completing 12th, you need to complete your graduation first, then need to appear in the CGPE exam, this exam conducted by SSC board every year. Here are the details of this examination:

Eligibility:
The applicant should have completed graduation degree from any recognized university with any discipline.

Age limit:

Your age limit should be between 18 to 27 years.

Upper age relaxation is applicable for other categories.

3 years relaxation for OBC candidates.

5 years relaxation for SC\ST candidates.

10 years relaxation for PH candidates.

Selection process:

Written Test

Interview

Medical Test

The Written Test will cover following topics:

General Intelligence and Reasoning

General Awareness

English Comprehension

Quantitative Aptitude