Ridhan kacha mma aha pụtara: Kechioma, Emesapụ aka, Oké njọ, Oge a, Eji obi ụtọ. Nweta Ridhan pụtara aha.
Kasị nkịtị surnames na aha Ridhan: Gawaikar, Batra, Kukadia, Harshashankarachar, Hada. Nweta List of surnames na aha Ridhan.
Kasị nkịtị aha na aha ikpeazụ Harshashankaracha: Ridhan. Nweta Aha na-aga na Harshashankaracha.