As you want to get the details that will you be able to join Indian Air Force after completing your B.Com so here is the information of the same for you:

I am sorry to say that you cannot join Indian AirForce with commerce stream as physics and mathematics are mandatory subjects to join AirForce and Indian Navy.

You can still serve our country by Joining The Prestigious Indian Army by appearing in CDS (Combine Defence Service) examination conducted by UPSC (Union Public Service Commition) twice in a year.

Minimum educational qualification to appear in this examination is to be Graduate in any stream.

Students having Physics and Mathematics at final year of graduation is eligible to join Air Force and Navy wing also.