NIT

Yes, in IIIT Manipur easily after participating in CSAB round.

With 83 percentile in JEE Mains, admission to CSE in top NITs or IIITs is unlikely for General category. However, you may get lower GFTIs or North East NITs and CSE-related branches like IT, AI/DS, or ECE in newer IIITs or GFTIs through JoSAA/CSAB rounds.

Options depends upon you category and homestate, so complete your question. 

You JEE MAIN rank is too good . It guarantees you good seat in good college.

For IIT seat it will vary from category.

Appear in JEE main, score good percentile and participate in JOSSA AND CSAB counseling and get admission.

No, until you are from SC, ST category.

What are you asking .

Even if you were from General category you can get .

But as you are from SC category no one can stop you from getting a good seat in good college with good branch.

With a 95.59 percentile in JEE Mains Session 1 and General category, your opportunity to get a seat in one of the top NITs is small, particularly in high-demand streams such as Computer Science or Electronics. But you might have a shot in lower NITs or for less sought-after streams such as Civil, Me

The IITs and NITs are no doubt highly regarded and enjoy an excellent NIRF ranking for their MTech courses, but there are various other top private and government colleges where you can study M.Tech courses in India.

Some of the best student choices for government M.Tech colleges are Jadavpur Univers

Based on previous years' data, a score of 56 marks in JEE Main usually places students within the 70 to 80 percentile range. But there is very less chance that you get any good NIT for this percentile.

But for ST category you may get lower branch in lower NIT.