Hello Nikhil Kalaga. Thanks for contacting Careers360 and we hope we will be able to answer your query. 

First up, sorry for the delay in getting back to you. I will try my best to answer your query. 

Note that one of the important parts in the application form of AP-PGECET is the "qualifying exam hall ticket number". So, it is very important to know what it means.

It means that you just have to fill the hall ticket number of the last exam that was conducted by the university, which is in your case, VIT.

Hope this helps you and all the best!