Hello Sir, which college is better for CSE between SRM, Chennai or BMS College, Bangalore or Thapar? Please reply.

Srm is better than BMS in CSE branch.

http://www.srmuniv.ac.in/engineering/department-of-computer-science-engineering/placements Have a look at the campus placements of SRM CSE. Do compare it with BMS.

In my personal opinion, I would suggest SRM University, main campus only. It's way more worthy than other colleges which you have stated in the question. Reason, I am saying this because SRM falls under in top 10 private universities of India. It offers wide range of learning they have robust infras