You have a very good academic records which will help you in getting admission in top reputated colleges. Along with good academic records you also have a plus point of being a non engineer who are given an additional marks weightage in aggregate score in the top institutes like IIMs and also get a call for next round of interview and WSAT at a lower percentile in comparison to an engineer student of same category.

If you want to get admission in top 3 IIMs i.e.IIM A, B and C them then you need to score atleast above 99.5 percentile. For other old IIMs  you need to get above 98+ percentile. And to get calls from new IIMs you need to score above 94+ percentile.

Along with these by scoring above 95+ percentile you cam get calls from various too reputated private colleges.

So work hard get a very good high percentile and utilize your academic, non engineer perks to end up in a very good b-school.

All the best for your preparations!!

your 12 and 10 marks and college percentage covers only 15% of total marks. The main percentile depends upon your performence in CAT Examination in which you should get at least 95 percentile to get gud mba college. and if u want the IIM's then u have to get at least 98 percentile minimum.