when will the application form will be released?

Hii!
The application forms for admissions into University of Hyderabad were expected to be released in first or second week of April, 2021. They aren't released yet but can be out anytime soon. So keep a check on the official website for updates.
The link given below will help you with more information -

https://www.google.com/amp/s/university.careers360.com/articles/university-of-hyderabad-admission

http://acad.uohyd.ac.in/EEPHD20.HTML

Hope this helps.
Good luck!