Bāṇa or Bāṇāsura was the eldest son of the demon king Bali. He was a great devotee of Lord Śiva and had obtained several boons from him. Aniruddha, the grandson of Kṛṣṇa, had surreptitiously married Bāṇa’s daughter Uṣā at her request. This led to a war between Kṛṣṇa and Bāṇa in which the latter was defeated.
Bāṇa is also the name of another asura or demon who had constructed three flying cities. At the behest of the gods like Indra, Śiva spared his life and permitted him to live in the Svarṇapura (the golden city).