If we have to choose between the two options that you have given, then as per my personal opinion i will recommend you to go with any branch in NIT as the placements will be very good with minimal studying fees unlike having a private university like NSIT.

Refer to the sites below to know more about both of them -

https://www.careers360.com/colleges/netaji-subhash-engineering-college-garia

https://engineering.careers360.com/articles/nits-cutoff-for-top-btech-branches

Best wishes. Thank you.