Dear AShwani

According to the innformation provided you have a very good academic record. To answer your query i would like to say that for IIM ABC you need a percentile over 90 to convert it in final call. 

For IIM L you need above 85 percentile and for IIM K the score should be over 85 percentile. For new IIMs a percentile over 70 would suffice.

Find more details on the link below-

https://bschool.careers360.com/articles/iim-cutoff

The minimum eligibility to get admission in an IIM is a minimum of 50% marks in graduation level. Refer the link given below for more information about it
https://www.google.co.in/amp/s/bschool.careers360.com/articles/iim-admission-criteria-2018-20%3famp