Yama ( listen ) or Yamarāja is a god of death, the south direction, and the underworld, belonging to an early stratum of Rigvedic Hindu deities. In Sanskrit, his name can be interpreted to mean "twin". In the Zend-Avesta of Zoroastrianism, he is called "Yima".According to the Vishnu Purana, Yama is the son of sun-god Surya and Sandhya, the daughter of Vishvakarma. Yama is the brother of Sraddhadeva Manu and of his older sister Yami, which Horace Hayman Wilson indicates to mean the Yamuna. According to the Vedas, Yama is said to have been the first mortal who died. By virtue of precedence, he became the ruler of the departed, and is called "Lord of the Pitrs".Mentioned in the Pāli Canon of Theravada Buddhism, Yama subsequently entered Buddhist mythology in East Asia, Southeast Asia and Sri Lanka as a Dharmapala under various transliterations. He is otherwise also called as "Dharmaraja".