Colleges like NSUT and MNNIT Allahabad have a legacy built over many years. IIIT Delhi will take some time to catch up to the reputation of these colleges.
Regardless, I have tried to rank the three on several parameters, for their CS (CoE) program-
Regardless of whichever college you choose for your CS (CoE), your success will come from your own efforts. By studying diligently and polishing your skills, you will land a well paying job, regardless of your graduation college.