Which college is best for btech other than iit and nit

This is a world site. India and Nairobi Institutes of Technology?
No one can or should give you an easy answer online.
It depends on so many factors that you could spend all day answering our questions and asking more. We don't even know how well you are doing in school or what your finances are.

I would argue neither of those... but as joypulv points out.. there is so much that is subjective... so much is objective... and much is what you can afford and attend due to location or even get accepted to. Just because you want to attend a school doesn't mean they will accept you into the school. You find several you like and apply to all, and hopefully at least one will accept you.