Hello Varun ,

The final cutoff percentile will be released by NTA, after the second JEE Mains exam. Since now it would be difficult to predict the  eligibility for the JEE Advanced level exam. Well, as per my prediction and watching previous few years eligibility criteria, the candidates having 85+percentile will qualify for JEE Advanced. This is just the predicted range.

However, you'll come to know the final results after the final session exam.

So, hope for the best.! To know your rank nd percentile you can use Careers360 Rank Predictor Tool to predict the rank & percentile in which you need to put the score using following link:

and colleges by: https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

Goodluck!