hello

JEE advanced is one of the toughest exams in the country owing to its unpredicatability.There is a very large variation in the rank vs marks trends depending upon the difficulty level of the paper. so one cannot be sure of his/her rank prior to tht paper as per the marks. The paper also does not carry the same marks always.

So the only thing you can do now is to do hard work because the predictions do not normally work in such cases.

hope it helps.