This chapter gives the history of Diti, the wife of Kaśyapa, and how she followed a vow to have a son who would kill Indra. It also describes how Indra attempted to foil her plan by cutting to pieces the son within her womb.
In relation to Tvaṣṭā and his descendants, there is a description of the dynasty of the Ādityas (sons of Aditi) and other demigods. Pṛśni, the wife of Aditi's fifth son named Savitā, had three daughters-Sāvitrī, Vyāhṛti and Trayī-and very exalted sons named Agnihotra, Paśu, Soma, Cāturmāsya and the five Mahāyajñas. Siddhi, the wife of Bhaga, had three sons, named Mahimā, Vibhu and Prabhu, and she also had one daughter, whose name was Āśī. Dhātā had four wives-Kuhū, Sinīvālī, Rākā and Anumati-who had four sons, named Sāyam, Darśa, Prātaḥ and Pūrṇamāsa respectively. Kriyā, the wife of Vidhātā, gave birth to the five Purīṣyas, who are representatives of five kinds of fire-gods. Bhṛgu, the mind-born son of Brahmā, took his birth again from Carṣaṇī, the wife of Varuṇa, and the great sage Vālmīki appeared from Varuṇa's semen. Agastya and Vasiṣṭha were two sons of Varuṇa and Mitra. Upon seeing the beauty of Urvaśī, Mitra and Varuṇa discharged semen, which they kept in an earthen pot. From that pot, Agastya and Vasiṣṭha appeared. Mitra had a wife named Revatī, who gave birth to three sons-Utsarga, Ariṣṭa and Pippala.