The eligibility criteria varies college to college like if student pursues this course from Amity university then PCM/PCB with 60% should be there or in case of DY Patil college 12th Std., HSC, CBSE with Physics, Chemistry, Biology taken together with 50% marks for general category and 45% for reserved category would be required. So it would be better if you could share which particular college you are asking for accordingly I would be providing you the eligibility and admission process.
Good Luck!!!