Hi M. Vamshi Krishna !

Congratulations ! You have got 79.29 percentile in JEE MAINS . You can use Careers360 rank predictor to know your probable rank . Here is the link provided :-

https://engineering.careers360.com/jee-main-rank-predictor

Further based on your rank , you can see the previous year cut off trend of NITs by following the link given below :-

https://engineering.careers360.com/articles/jee-main-cutoff-for-top-nits

ALL THE BEST !