7/8/7 profile review. SC category

Category benefit will help alot, as far as I know somewhere around 90+ will land you amazing options.

(However, it's impossible for anyone to give you exact numbers) Cause there are a lot more criterias.

Extra curricular, work experience, etc.

With the SC reservation, a 90–95+ CAT percentile can make you competitive for many top IIMs, while 95+ strengthens your chances for BLACKI.
Focus on maximizing your CAT score and preparing well for the PI/WAT, as they play a crucial role in the final selection.