Hello,

All the three colleges are equally good it would be better if you choose IIIT Gwalior. It is the oldest IIIT and it has a very  good placement record. It is a very big campus and it has a very good environment. Since the college is old it has the best and well experienced professors and faculty for different departments. It is totally funded by MHRD.

IIIT Lucknow is a new campus and it is established in 2015 so it does not have much recognition. The placements are good in IIIT Lucknow.

CSE in DTU is almost equal to IIIT Gwalior as it is one of the top colleges in Delhi.

Hope this helps you.