I am a p.c b.hper student. Please help me to know the courses i can do after my 12th.

Well you can go ahead with B.Sc in microbiology, chemistry, physics and so on. You can even do MBBS else B.Sc Nursing is also a good option. You can apply for Military Nursing as well. And if you have interest in cooking you can go ahead with Hotel Management. You can even opt for Agricultural Engineering. Whatever you opt for give your best . All the best for your future. Any doubts further do ask.