The best  college to become a software developer is any IIT'S AND NIT institutions . IIT'S and NIT'S give you a proper skills to become a software developer.  There are also some private universities like NMIMS university , SYMBOISIS university , BITS PILANI , DHIRUBHAI AMBANI IICT GANDHINAGAR etc: These are one of the top private universities that even have tie ups with the companies like MICROSOFT, SONY, IBM ,APPLE , GOOGLE, FACEBOOK, ACCENTURE, INFOSYS etc:

Mostly the famed colleges have better placements than a decent one.