According to the official criteria given by the IIMs, the minimum graduation percentage required is 50% for General category and 45% for reserved category. So, strictly on the basis of that, you'll be eligible. However,satisfying the eligibility criteria is not a sure-shot assurance for admission. IIM A,B,C especially have a very high standard when it comes to taking admissions. So, try to keep your percentile above 97 and good luck.

Hey there

Your 10th and 12th marks are good but in graduation you have less marks but if you'll do good at your cat exam then you have chances of getting call from iims but less chances of IIM A, B,C as they are oldest and have highest Cutoff but again if you'll have amazing CAT score then you may get a call.

Check about CAT 2019

https://www.google.com/url?sa=t&source=web&rct=j&url=https://bschool.careers360.com/articles/cat/amp&ved=2ahUKEwiO97rdvo_lAhWE73MBHU_GBs8QFjABegQIBBAE&usg=AOvVaw0Of8Y_vXRn6X3y-f2tt-rY&ampcf=1

Good luck