Hii kaushil,

To get admission in ISB it is not only the CAT score or GRE score.There are so many factors yo consider in the final selection.

First of all you should get a good CAT score.Above 95% is sufficient enough.After that you will have a GD & PI rounds.You have to perform well and the score was noted by the HR.In the final selection process your academic marks also matters.so In a toatal of 100 marks ,based on all these they will assess how skillful you are.Based on that you will get the admission.GD &PI accounts 40%of the total marks.your section depends on the total score.

So you should focus on all the activities conducted by the ISB.

All the best...,