Hope you are doing good .

You are an IIT aspirant and you want to know the marks you would have to score for top IIT colleges.

But you should know that marks don't get your colleges it's the rank. marks depend on difficulty level of the question paper and if the question paper is easy more student would score more marks therefore asking for marks as cutoff is highly variable for each year.

I will list out artical from our official website which mentions the cutoff rank of top IIT.

Here is the link.

https://engineering.careers360.com/articles/jee-advanced-cutoff/amp

also you should definitely use our college predictor tool to know about your best chances.

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

And

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