Do I need to apply in different state counsellings for the private medical colleges of other states instead of mine i.e Bihar? If yes, do i need register beforehand by paying the required fees for the rounds-1&2 or can i take part directly in Mop-up round.
You need to apply in different state counsellings for management seats in private medical colleges of different states. Keep in mind you are not eligible for government seats in states other than your domicile state (Bihar in your case).
You can apply for round 1 or directly the mop up round, it is up to you. But it is also possible that the mop up round might not be conducted. Better to be safe and apply right from round 1.