JEE Advanced

Yes, you can get the admission, but you cannot get stream of your choice.

Hello,
Getting admission in IIT is a dynamic process. If there are enough candidates of a particular category above announced cutoffs then admission is easier. Last year there were not enough candidates in some categories meaning all who scored above cutoff got admission? Just wait for few days for the announcement of cutoff of JEE Advanced. Best wishes to you.

Go with rank predictor to know what would be your rank approximately:
https://www.shiksha.com/b-tech/resources/jee-advanced-rank-predictor.

No, it is based upon last year's prediction. So, it is not correct.

You will be treated as a general candidate, no reservation.

Candidates appearing for JEE advanced belonging to the creamy layer (CL) of OBC are not eligible for reservations and are treated as part of the general i.e. unreserved category. Hence, you are not eligible here for OBC reservation.

Candidates appearing for JEE Advanced belonging to the Creamy Layer (CL) of OBC are not eligible for reservations and are treated as part of the general i.e. unreserved category.

It's not possible for you to get admission in any of the IITs with 55 marks as your rank would be more than 25k.

You can use the JEE Advanced rank predictor and check your rank:
https://www.shiksha.com/b-tech/resources/jee-advanced-rank-predictor.

Here is the list of colleges which accept JEE Advanced.
https://www.shiksha.com/b-tech/colleges/b-tech-colleges-accepting-jee-advanced-india