hii,

I  read your problem statement , Firstly jee mains percentile does not apply for iits. It is applicable fir other colleges. For iits jee advanced is to be qualified.However I am providing  you a link for your query. this is careers360 college pridictor tool. it will help you alot.. Hope that it is helpful to you. wish you all the best.

regards

https://engineering.careers360.com/jee-main-college-predictor?icn=jee-main-clgpd_landing-page&ici=prediction-section_c360-home

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

. https://engineering.careers360.com/articles/nits-cutoff-for-top-btech-branches