Hi,

If you are not concerned about the location accesibility,then Amritapuri is the best.

Active student clubs like the FOSS at Amrita, which has a lot of members contributing to Open Source projects, talking at conferences worldwide, getting into and completing programs like Google Summer of Code ( Achievements ) etc. 

If you are into security, we have India's top 1 CTF team here in Amritapuri 

If you are into competitive programming, we have an ICPC and programming club, which has produced students to the world finals too. 

Experienced faculties, and you have BTech Honors program which would give you an extra edge plus wavier in tution fees