If you are comparing these both colleges, then I assume that you want to go for the CSE field, and for that I would definitely advise you to go with NIT Raipur over IIITNR. See, the legacy of NIT Raipur is unmatched and all the major companies from Microsoft to Google come here for placements, so you'll have more opportunities here.

Even the fees of NITR is less than IIITNR and the average placements are as follows:

NITR: 9.7 LPA
IIITNR: 8.6 LPA

So, in my opinion, NIT Raipur is better. Hope I have answered your question. All the best!