Hello

The admission process varies from college to college. Colleges take admission to the B.Tech programme on the basis of marks in the JEE Main exam and some colleges also conduct its own entrance test or state level entrance tests for admission. 

You are seeking admission in which college? Also, since it is late to answer this question, I hope you have got a seat in any decent engineering college. Do let us know if you have any other queries.

Good Luck!