hello aspirant ...

The overall lowest cut-off for top IIMs:

You will get a call from IIM if you touch 90 percentile or above (except for IIM A which has a lower cut-off) The overall cutoffs are as follows:

Most of the new IIMs have their cut-off requirement set at 85 with IIM Shillong having cut-off set at 70 in CAT.

What really matters is the sectional cut-offs for all three sections. You need to have the minimum cut-off requirement for each section, which differs from IIM to IIM. If you get less than that for anyone of the sections, you will lose that call. For IIM A, this sectional cut-off is the lowest,  you need a sectional cut-off of just 70 percentile or above to get a call from them.

If you have a good profile, you have a higher chance of getting a call at a lower percentile, too. Profile in this sense would mean a high percentage / CGPA in your Graduation 10th, 12th and Under. Usually those who have 90 percent and above for all three will be considered for IIM ‘s call (IIM A for sure!) Apart from that if you are an exceptional performer in any extra-curricular activity with awards and recognition, you have a chance of getting a call from IIM.

One surprising fact is the actual cut-off date of IIMs goes on to show that for many IIMs, the actual CAT cut-off is much higher than what institutes announce prior to shortlisting for the further process of the institutes. Except a few of them, the actual interview cut-off of the majority of IIMs falls in the range of 96 to 100 percentile in CAT while the announced cut-off being in the range of 80 to 90 percentile.

hope it helps !