Hi Aspirant, hope you are doing great!

If you did your 12th from commerce background, then you can't get admitted into BVSc. BVSc colleges requires your NEET UG scores to help you in getting admissions, and to get your NEET UG cleared, you need to have Physics, Chemistry and Biology, with a minimum of 50% in 10+2.

You can join NGOs with your Diploma, but cannot get enrolled in a BVSc college.

Regards!