Dear aspirant,
Congratulations on your excellent result in JEE MAIN 2020. According to your question and doubt, you can see this link for NITs cutoff 2020.
https://www.google.com/amp/s/engineering.careers360.com/articles/nits-cutoff-for-top-btech-branches/amp
Also, you can predict which college you get according to your rank. See the given link-
JEE Main College Predictor – Know your College Admission Chances Based ...
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile