Which is the best college for B.Arch. How can I be a student of that college?

By far, the best college for architecture is considered to be Sir JJ College of Architecture. As it is a government college, all you need to do is to appear for JEE main paper 2 in order to get into that college and for other private colleges, you need to appear for NATA (national aptitude test of a

There are many colleges for architecture. Try to clear JEE Mains through that. You can be a student of NIT or IIT or try NATA also, there are better opportunities.