I am assuming you are from general category. Based on your overall academic profile, you will need to score atleast 99.99 percentile to get a call for the next round.

All the best!

IIM Calcutta will also consider past academic records (Class X and XII scores) and Gender Diversity factor.Take a look at the IIM Calcutta admission criteria 2018-20 in detail. Link given below

https://www.google.co.in/amp/s/bschool.careers360.com/articles/iim-calcutta-admission-criteria-2018-20%3famp#spf=1521043706045