Hey there

You have decent score in your academics but for a call from IIM Calcutta is majorly decided by your CAT score so whatever your CAT score will be that is going to decide your interview call as your academics is average. IIM Calcutta is top IIM so don't get panic if not get a call there are other good MBA colleges.

Check detailed list of MBA colleges

https://www.google.com/url?sa=t&source=web&rct=j&url=https://bschool.careers360.com/colleges/ranking&ved=2ahUKEwjR9Mi-jaHpAhUizzgGHQrQDu4QFjAAegQIAxAB&usg=AOvVaw2WBDJlWk_AqigtrpnGYTPq good luck