According to the Buddhist accounts, the successors of the Magadha ruler Bimbisara were Ajatashatru, Udayabhadra (Udayin), Anuruddha, Munda and Nagadasaka.

[7] Professor H. C. Seth (1941) identified Udayin with the king Udayana mentioned in the Sanskrit play Svapnavasavadatta.

[6] The Chinese traveler Xuanzang states that the last descendant of Bimbisara built a sangharama (monastery) at Tiladaka.

Seth theorized that this last descendant was Darshaka and Udayin established a new dynasty, as signified by his transfer of the empire's capital from Rajgriha to Pataliputra.

[9] The Buddhist traditions state that Udayin was Ajatashatru's favourite son, and was alive during the reign of his grandfather Bimbisara.

These Buddhist chronicles also state that all the kings from Ajatashatru to Nagadasaka, including Udayin, killed their fathers.