Hi Aayush, 

In order to get IIM calls, you should secure at least 90+ percentile. While old IIMs like IIM Ahmedabad, Bangalore, Calcutta, Lucknow and Indore calls candidates with 99+ percentile, for the newer IIMs, the cutoff is slightly lesser, but still, 90+ percentile is what the cutoff trend is for General category candidates.

As far as non-IIMs are concerned, the cutoff range varies from institute to institute. For the top-ranked institutes like FMS Delhi, IITs (Delhi, Bombay and Madras), the CAT cutoff percentile is 99+. On the other hand, other premier B-schools like MDI Gurgaon, IMT Ghaziabad, SPJIMR Mumbai cutoffs range from 90-100 percentile. The following articles will help you understand the cutoffs of top B-schools in India:

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https://bschool.careers360.com/articles/which-b-schools-will-you-get-based-on-your-percentile