This depends on the score in XAT and CAT. If you are aiming for IIM Ahmedabad or IIM Bangalore or IIM Calcutta, then a CAT score of close to or more than 99.8 percentile is needed for a general category student.
You may get a call from other new IIMs such as IIM Kozhikode, IIM Indore, IIM Lucknow, and IIM Shillong. As far as 2nd and 3rd generation IIMs are concerned, then a score of more than 96 percentile is enough to secure the interview call.
For XLRI Jamshedpur a XAT score of more than 98 percentile is enough to get a call for the interview process. The institute gives somewhere in the range of 10% - 15% weightage to 10th, 12th, and graduation marks.
Next is your performance in the WAT and PI which will determine your eventual admission.