Don't report at the allotted institute they will cancel your seat and then you have to register for the college level counselling from the official website and decide your colleges and dates in which you want to take admission and you can know the vacant seats for the below website as well in counselling section

https://dte.mponline.gov.in (https://dte.mponline.gov.in/portal/services/onlinecounselling/counshomepage/home.aspx)