Your admission to DTU/NSUT/IIIT Delhi will depend on your home state and the quota you belong to.
If you are from Delhi and belong to OBC,SC or ST , you'll easily get a good branches in all of the above mentioned colleges.
If you are not from Delhi and belong to OBC ,SC or ST , you'll get decent enough branches at the above mentioned colleges.
But if you are from general category , your chances of getting into DTU/NSUT/IIIT Delhi are close to zero.
All the best.