Hii Humani Verma.. That totally depends on different iims and will be different for different categories.

Usually, the CAT cutoff for old IIMs and top B-schools such as FMS (University of Delhi), MDI Gurgaon, SPJIMR Mumbai, etc. goes over 99 percentile. New IIMs including IIM Sambalpur, IIM Ranchi, etc. and other top B-schools have cutoff 90 percentile and above. On the other hand, the cutoff for B-schools belonging to tier two to four range from 80 to 50 percentile.

You check more details here- https://bschool.careers360.com/articles/cat-cutoff

Hope this helps you. All the best.