NIT

If you have confidence in yourself that you will stay away from all kind of distractions and totally focus on your studies then no one can stop you from scoring good marks in JEE and getting admission in NIT. But if you are not sure then go for computer science.

Hello Manas,
JIIT, Noida is among top private colleges of India, It secures under 60 rank in the latest MHRD ranking. So it is definately better then lower grade private colleges under UPTU domain. However, if you are not getting your preferable branches at the lower NITs then only switch to JIIT.

Hello Ranjita,
The minimum percentage in 12th board exams is 75% for general category and 65% for SC, ST and PWD candidates. You need to secure the above percentage or should be in the top 20 percentile students from your board means you should be in the top 20% of students from your WB board.

Hi,
No, according to JoSSA policies, if you are not having 75% or more than 75% then you are not eligible. Either, you have topped JEE Mains/Advanced.
Only one thing can happen in your account, if you are in the top 20 percentile of your board (less than 75%) then only you are eligible for a seat.

Yes, it's valid. In each branch, specific seats are reserved. See, JoSAA seat matrix for more specific numbers.

Well, possibly you will get. See JoSAA online portal and coordinate with its councilling programme.

Admission in M.Tech at IITs and NITs is based on GATE score. IIT-Powai and IIT-Delhi are best Institute for M.Tech in electrical engineering.

Hi Manjeet,
You may refer to this college comparison tool to compare these colleges along with the branch options here on this provided tool by Shiksha:
https://www.shiksha.com/resources/college-comparison

You have a chance of getting admission into this NIT in B.Arch course and that too only if you belong to Himachal Pradesh because of the last year's B.Arch sixth round cut-off closed at 12000 rank for Home State OBC.