History:
Sarayu: This surnames spread probably shows how people moved around, both because they had to and because they wanted to. Wars or political messes might have forced families with this surname to different places. Picture families escaping trouble, bringing this surname to new homes. People might also have moved for jobs or better lives, spreading this surname to new areas. Over time, these moves built the map of where this surname is found and maybe even small changes in how its spelled or said.
Description:
Saru is a shorter form, used sometimes as this surname. Saray is another simpler spelling. Nayaru is a possibility, maybe due to how it sounds or where its from.
