You have scored a decent percentile. Your JEE Main All India rank will be approx 20k - 21k.
For getting seat In NITs your score should be —
- For General Candidates - 90+ Percentile
- For OBC Candidates - 86+ Percentile
- For SC/ST Candidates - 67+ percentile
- For PWD Candidates - 54+ percentile
For getting Seat in top 10 NITs ( in CSE, IT or ECE )
- GENERAL - 98+ Percentile
- OBC - 97 + Percentile
- SC - 94+ percentile
- PWD - 88+ percentile