Dear Student,

According to the official website-

After the registration deadline, there will be no possibility of a fee return. The start of the academic year is set for August 2022. The candidate will be assigned a dormitory room on a shared basis.

But you can contact them on -

Phone no +91- 1262-228511, +91-1262-228507/32

Email - pgp.chair@iimrohtak.ac.in (mailto:pgp.chair@iimrohtak.ac.in)

Try talking to them and tell about your genuine reason, they might consider.
Good luck