Dear aspirant,

Yes you have a good chance at top IIMs if you are able to score more than 95% tile in your CAT exam. Maybe IIM Bangalore and Ahmedabad would not call you because your 10th and 12th score are below average but you can expect call from other IIMs at minimum 95 percentile. with more than 90 percentile you can expect call from new and baby IIMs like IIM Amritsar Kashipur etc.

Hope this helps. Thank you.