Hi

Biology is the most essential subject to pass to be eligible for the b pharma course in india. Even if you have passed the exams(passed in 5 subjects), you still need to appear for the biology exam when compartment exams are held and then apply for bpharma). It's necessary to have atleast 50 percent aggregate marks in your 10+2 examinations including PCB as necessary subjects for eligibility.

Hope this helps