A contemporary of Mar pa. He might also be called Gnyos Lo tsā ba. In the latter half of the 11th century, while he was translating Kālacakra with Somanātha, at the same time 'A zha Rgya gar brtsegs was serving as translator. After going to India, he cultivated the Ye shes zhabs system of Guhyasamāja with Ba linda Ā tsarya. While in India, he traveled together with Mar pa Lo tsā ba, as is clear in the latter's biography. Mtshan-tho, no. 54. Blue Annals, pp. 372, 373, 759. Padma dkar po, Chos 'byung, p. 433.3. Gnyos Lha nang pa was his descendent.
Stearns, TRP, p. 168. Here identified with Gnyos Lo tsā ba Yon tan grags.