Which engineering colleges can i get with 94 percentile?
However, I am sure you will get a better chance with your marks at a better place.
Regarding the 100% scholarship of Amity University, you do have to maintain your grades to retain the scholarship for the subsequent years.
Ive been to Amity Lucknow (I did not graduate though). I can tell you that it is not the best university around, but neither is it the worst. Keep it as your last option among private non-entrance based universities for Engineering. Amity is good at times given they do get bursts of on-campus placement offers (if you are looking for that sort of a thing in a college). A few years they get lot of companies and sometimes, there is a lull.
So take a wise decision. There are better colleges/universities, but as I said, Amity isnt by any stretch worse. It is just a commercial university with plenty of perks and average to better than average educational standards (depending on campuses).
All the best.
But if your heart is set on NIT, then for reference following is the list of NITs where there is good chance for you to get admission:
NIT Mizoram
NIT Meghalaya
NIT Sikkim
NIT Puducherry
NIT Manipur
NIT Srinagar
NIT Arunachal Pradesh
NIT Agartala