NIT Patna - National Institute of Technology

Yes , NIT Hamirpur is better.

Yes, you can get admission depending on your marks and rank in JEE Mains.

Regarding board marks, for admission in any NIT, you should either be in top 20 percentile of your board or you should have at least 75% (for General or OBC) or 65% (For ST or ST) in 12th board exams. If you satisfies these conditions then you will surely get admission in any NIT through JOSAA.

Hello Savitru,
Please refer to this link to get more insights of the colleges and branches.
https://www.shiksha.com/resources/college-comparison.
However, IIT-Patna is better.

Nope. You can take admission in any NIT only on the basis of JEE Mains exam.

The newly constructed building is there for girls, namely Ganga hostel, well furnished with all facilities. It is a six story building with a basement. Lifts are provided for ease. Basement area if for the mess. Fourth and fifth floor's rooms are of four-bed rooms with attached lat bath. The best part is that it is on the bank of river Ganga, you can enjoy the beautiful view of the river by standing on your balcony. Security is also good here.

No, you should have more than 75% marks in class 12th boards or you should be in top 20 percentile.

No, seats are allocated on the basis of your preference. Please put your choices on the basis of your preference (higher preference first) for desired results. If you prefer CSE then put CSE on 2nd choice and after that civil on third choice.