VIT is good but its not like IIT KGP because the alumni IIT KGP have is considerably large. The placement scenario for most of the trades are very good. Apart from this the exposure in terms of research, academics provided by an IIT can't be compared to any other college. Apart from this the faculties you will get in IIT KGP are the best of the researchers in India so the experience you will get is incomparable to VIT.

So both the institute is great but it can't be claimed that VIT is better than IIT KGP.

I hope this helps.