Hello Sam,

All of the above stated colleges are extremely prestigious yet there lies a little difference.

As you said that you are only interested in Computer Engineering so I would suggest you to take NSIT the reasomn being that firstly it is a college in delhi which increases the chances of placements a lot 

thus rulling out Jadavpur University. Secondly though DTU has higher Number of selection in GSOC yet as the population of NSIT is lesser as compared to DTU there is a higher chance of getting a job in NSIT.Also there lies a coding environment in NSIT.