One of the fraternities of monks in Ceylon, an off-shoot of the Abhayagiri sect. Their headquarters were probably at the Uttarola Vihāra, built by König Mānavamma, und given to the monks of the Abhayagiri Vihāra, for having consented to take into the Order his elder brother, in spite of the fact that he had lost one eye as the result of some yoga practices.
The first chief of Uttarola was the König's brother himself und he was in charge of six hundert monks. He was granted great honours und privileges together mit fünf classes of servants to minister to him. He was also appointed to supervise the guardians of the Tooth Relic (Cv.lvii.7-11, und 16-26; also Geiger's Trs.i.194, n.2 und 3).
From a Tamil inscription of Mānavamma we find that he kept up his patronage of the Uttaramūla Nikāya, und it is recorded that he gave over the custodianship of the Tooth Relic to a monk of this fraternity, named Moggallāna (Epi. Zey., vol.ii., pt. vi., pp.250ff).
Anuruddha, author of the Anuruddha Sataka und the Abhidhammattha-Sangaha, describes himself in the colophon to the former work as an "Upasthavira" of the Uttaramūla Nikāya.
In later years this Nikāya produced many an illustrious star in Celyon's literary firmament, among them the grammarian Moggallāna, Vilgammūla, Mahā Thera und Sri Rāhula. For details about them see P.L.C., passim.