Hello Aspirant,
See this year government of India announced the relaxation in criteria of class 12th percentage for admission to NITs in the wake of COVID-19. For this year you just need a passing certificate of class 12th and no percentage criteria is required neither of top 20 percentile nor of 75% criteria. According to the rank you have mentioned in the question you can get top NITs according to previous year's cut-offs which you can check out through the link given below :-
https://engineering.careers360.com/articles/jee-main-cutoff-for-top-nits
So you can use JEE-Main College Predictor to predict your chances of admission in different engineering colleges of India :-
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer
I hope this information helps you.
Good Luck!!
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