Which is the best college among these three Bharat University ,Vel Tech and Kalasalingam?

I am not sure how Kalasalingam University's education, faculty, facilities, and placements are. There are numerous options available, but if you must select between Bharat University and Veltech University, both are excellent in every way. 

Whether it's about facilities, faculty, college and hostel life, security, food, Campus, Placements, and so on. You will not be sorry if you chose any of them. And, as I previously stated, these are engineering colleges, so you will learn a great deal. 

The best thing is that you'll be interacting with people from all over India. Every single student from around the state is going to be on your campus. As a result, educate yourself and improve. 

If you really have a choice between these two, then go for any of them, cause both are equally good. You will not regret it later.