Hii,i am here to help you according to your query.Well,almost all have mentioned before me, almost all of these colleges have an equal footing. Be it academics or placements it’ll be a close call for all of these.

My personal preference for CSE would be

NIT Trichy = NIT Surathkal = NIT Warangal > DTU Delhi > IIIT Delhi

Hope,this information helpful for you.Goodluck.