Hi

First of all for admission in IITs is not on the basis of JEE mains but JEE advanced and to be eligible for JEE advanced you need to clear JEE Mains

With 55.7868 percentile being from OBC your chances of qualifying JEE mains 2021 is very  low .

For example,

JEE mains 2020 qualifying cutoff to be eligible for JEE advanced for OBC NCL category was  72.8887969   and for JEE main 2021 qualifying cutoff for OBC category is expected to be around     70 -75 percentile.

You can check the same at our page the link is provided below

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

So, I would suggest you focus on your preparation for remaining sessions of jee main so that you can improve your score  and be able to qualify JEE mains qualifying cutoff in order to be eligible for JEE advanced and then qualify it as well to get admission in IITs on the basis of rank obtained in JEE advanced , so  go through chapters , practise questions and then revise them, go through mock test paper sample papers and previous year question papers as it will let you know your preparation level and and weak areas so that you can work on them and perform well in your examination.To help you in your application you can use our jee main knockout for which link is provided below

https://learn.careers360.com/knockout-jee-main-april/

If I tell you about your rank then with your said percentile your Overall Rank will be around 452371 - 508530 as per our predictor at

You have chances in private Engineering Colleges accept ,so to check your chances for those you can use our college predictor for which link is provided below

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

Thankyou