There is an elective course - Zen and mind training. Those who are very anxious about result, once you get into IIMB (I really wish), do take this course.. It will be very helpful to train your mind and finding the Zen
What's done is done, I know we love to know about the process and how things are calculated etc etc. But for now, let's only worry about things which are important and at the same time, is available for verification.
I'm sure this is not the only clg you guys have applied, other colleges have different selection process, so use your experience of IIMB interview, and try to polish i further for other colleges.
Also start practicing things which are unique to other colleges, more you prepare, less you'll feel like surprised on the D-day