i want to do MBA from reputed college/univeristy , i'm 41 years old professional

Go for EMBA from IMT GZB.

First of all, let me make a mention that age, is never a barrier, for studying, or to put it broadly, acquiring knowledge. I know several professionals, who took a break from their job, to do a professional program. Since you are looking at doing your MBA, ensure that you do it from the top 100 B Sc