what we have to do seek admission is there any types of entrances or any thing

Hey.

You did not mention all the required details. I will be giving a general idea.

So for getting admission in any college surely you to satisfy their criteria, better is the college more will be the criteria. By criteria i mean they might ask for your percentage in 12th, or they might have a separate entrance exam. Some colleges come under state counsellings, so for that you might be asked to give a separate exam for that state. It depends on college to college. But yes every good college will definitely have some criteria to pass.

Hope that helps.