Hello Sashi,

Best Bachelor Degree courses to become a CBI Officer are listed below.

1. Bachelor of Arts in Criminology

2. Bachelor of Commerce + LLB

3. Bachelor of Arts in Criminology and Police Administration

4. Bachelor of Arts + LLB

To become a CBI Officer you must write Civil Services Exam conducted by UPSE. To join as Sub-Inspector in CBI you must write SSC CGL exam.

I hope this information was helpful.

All The Best!!