In the Purāṇa (Purana), the clan of Uruṣaya (Urukkhaya) was one of the clans of ṛṣis (sages) included in the gotra or clan of Maharṣi (Maharsi) Aṁgirā(Angira). As a part of the clan of Maharṣi (Maharsi) Aṁgirā(Angira), (Maharsi) Uruṣaya (Urukkhaya) was a significant founder of the gotras or clans.