Hi there,
Hope you are doing well.
Every year, the max. marks in case of JEE Advanced Changes and so there is not a definite percentage of marks that you need to score.
But being an SC Candidate, securing a minimum Category rank of around 150-170 would be needed to get a seat in IIT Hyderabad and that too in later rounds.
For the first round, your rank should be less than 150.

Hope it would help.
Thank You.