History:

Gonugunta: This surnames spread probably shows how people moved around historically. People with this surname likely moved for jobs or better land. Marrying and family connections also helped spread this surname, as people moved to be near family or started new communities. Where this surname is found likely reflects the different reasons people moved.

Description:

However, I can guess at some possibilities. Adding a title like "-Reddy" is common in South Asia, so we might see "Gonugunta-Reddy." The name might also be shortened to "Gungunta" over time. Finally, slight spelling changes could occur because of dialects or mistakes when the name was written down. These are educated guesses, though.