Can I do M.Pharma after B.Sc in ZBC (zoology, botany and chemistry)?

Yes, you can pursue, but you were having B.Sc in your graduation years, and at the time of pursuing M.Pharma, you can you able to cope up with the Bachelor's degree syllabus of B.Pharma. Obviously, it is a different field to study.

Going through the same issue and trying to find colleges that'll offer M.Pharma with a B.Sc. Qualification. So far no luck.