History:
Velumani: This surnames spread probably shows how people moved and settled over time. Historically, people moving within India because of jobs or farming changes likely spread this surname. People moving to cities for work probably explains why its in certain places.
Description:
Velumani: This surname is mainly found among South Indian communities, especially in Tamil Nadu. Its probably spread across many different groups in the Tamil-speaking areas. How this surname is spread around might show how people moved around and how society was organized in Tamil Nadus history.
