A Nāga king, tamed by Mahā-Moggallāna. The Buddha and five hundred monks, on their way to Tāvatiṃsa one morning, travelled over the Nāga king’s abode as he was having a meal. In anger, the Nāga coiled round Sineru and covered the road to Tāvatiṃsa..

Thereupon several members of the Buddha’s retinue, including Raṭṭhapāla, Bhaddiya, and Rāhula, offered to quell the Nāga’s power, but the Buddha would not agree until Moggallāna sought permission to do so. It is said that no other monk had the power to face all the dangers created by the Nāga and remain unscathed. Moggallāna and Nandopānanda vied with one another in the exhibition of their psychic power, and, in the end, Nandopānanda had to acknowledge defeat. He was thereupon conducted to the Buddha, whose follower he became. When Anāthapiṇḍika heard of Moggallāna’s victory, he celebrated it by holding a great alms festival, lasting for seven days, for the Buddha and his monks. ThagA.ii.188 f; J.v.126.

In the Divyāvadāna (p.395) Nanda and Upananda are spoken of as two Nāga kings.