In the Trayaviṁśa(Trayavimsa; twenty third) Dvāpara (Dwapara), when Tṛṇavindu (Tinavindu) will be Vyāsa (Vyasa), Mahādeva(Mahadeva) will appear in the name of Śveta (Sweta), as the son of a sage. At that time, Śveta will be the father of four sons. Ūsija(Usija) will be one of them.