Hello Siddharth. Welcome to Careers360. First of all, cogratulations for such a good score. I would like to tell you that the final results are yet to be released by NTA. These are just approximate ones. After the second exam of JEE Mains, You will get to know your final percentile. Cutoffs will also be released after the second exam results are out. So you have to wait till April to know the final results and cutoffs. For your reference, I am sharing a link with you which consists of previous years NITs cutoffs

https://www.google.co.in/amp/s/engineering.careers360.com/articles/jee-main-cutoff-for-top-nits/amp

Hope this answer helps you. Good luck.