A brahmin, pupil of Bāvarī.

When his turn came to question the Buddha, he asked him to explain emancipation through higher knowledge and the destruction of ignorance (avijjā). Because Udaya had already attained to the fourth jhāna, the Buddha gave his explanation in the terms of jhāna. At the end of the discourse Udaya realised the Truth. Sn.1006, 1105-11; SnA.ii.599-600.