Forty-nine Marut gods were born out of the womb of Diti, the daughter of Dakṣa (Daksha). Diti was impregnated by semen of Kaśyapa Prajāpati (Kasyapa Prajapati). These Marut gods were divided among seven gaṇa (gana) or sects. Ugra was one of the Marut gods of the fourth gaṇa (gana) among these seven gaṇas (ganas).