when central University of Andhra Pradesh will reopen for offline first year undergraduate classes
The university will open according to state government guidelines. Due to the increase in COVID 19 cases that may be delayed. It will be released once all the admission procedures are completed, so it is not possible to predict anything based on assumptions. Keep checking their official website for timely updates and official notifications, once they reopen anyway you will be notified so please be patient. If you still want more information or really want to know about the dates, you can call them directly and ask about it. For more information, you can contact the university authority regarding this, they will give you a real picture.
I hope my answer helps. All the very best for your future endeavors!