JEE MAINS AND ADVANCAD one of the most famous entrance exam for getting admission in Engineering college. But if we talking about IITs or NITs then you must have to secure at least 75% in your 12 board, yes it is abolished this year due to this corona virus effect. So you have also study for both JEE MAINS & ADVANCED and BOARD.

As you are general candidate, you have to score more than 98.5 percentile to get admission in decent college in decent branch. As I have score 96 percentile in previous yearand being general candidate i won't able to get admission in central NIT in Branch like CS, ECE, IT, MECHANICAL and ELECTRICAL.

So try to score more then 98.5 percentile so that you can get admission in any NIT or IIIT college.

GOOD LUCK !