Can I make it to IIM A B or C if my 10 score is 93, 12 is 82 and grade is 73 and from a tier 3 college?

Your question basically means what criteria are required to get into IIM A B or C. The table below has summarized the different parameters that decide your eligibility for admission into IIM ABC.

Now considering your profile, you need the following CAT score to get into IIM A B C

IIM Ahmedabad: If you are a non-engineer you will get a call easily but if you are an engineer you will need work experience and at least 99.5+CAT score

IIM Bangalore: You will need work experience to compensate for poor academic record or at least 100 percentile to get a call

IIM Calcutta: you will need 98.8+ if you are a girl. For boys, it is around 99.6+.