This deva is one of the sapta pitrs. According to the Mahabharata Sabhaparva Chapter 11, verse 44-46, the sapta pitrs are Vairaja, Agnishvatha, Garhapatya, Somapa, Ekashringa, Chaturveda, Kala, the first 3 of whom do not have bodies. The Agnipurana Chapter 20 also mentions that Agnishvatha is born of Brahma.