How do I correct my name in a degree certificate in Acharya Nagarjuna University?

Firstly, you need to go to Pariksha Bhavan. There each clerk in the examination section is assigned with a set of colleges affiliated with the University. 

Approach the clerk, he will verify your 10th Marks sheet. He then needs to get approval from or signatures from more than 7 officers, this will take time, about 1-2 days. 

They are rumored to get it delayed intentionally for obvious reasons. If you can successfully maintain your calm to their professional ethics, you will be over with it quickly.