While destroying Aṅdhākāsura (Andhakasura), Mahādevā (Mahadeva) or Lord Śhiva (Shiva) created innumerable female deities from his own body to kill Aṅdhākāsura (Andhakasura). Udumvarī (Udumvari was one of those female deities.

Matsyapurāṇa(179.18.)