Chandigarh university is a private college and NIT Manipur is government college.

If we compare the ratings of both the colleges than NIT Manipur has AAA+ rating which means good and Chandigarh university has AAA rating which means above average

So, you should opt for NIT Manipur.

To check the ratings and reviews of both the colleges you can refer below link

NIT Manipur Ratings and Reviews

Chandigarh University Ratings and Reviews

Good Luck!!