His name must mean he is from the Ne[pal] Valley. Ehrhard distinguishes him from the Newar bhikśu who wrote a guide to Nepal entitled Bal po'i gnas yig.
Nas lung Ngag dbang rdo rje was definitely a disciple of Rang rig ras pa and editor of his Mgur. Franz-Karl Ehrhard, The Register of the Reliquary of Lord Raṅ-rig Ras-pa, Wiener Zeitschrift für die Kunde Süd und Ostasiens, vol. 46 (2002), pp. 146-167, at p. 148.
See Decleer in Lungta, vol. 13 (Summer 2000), p. 41.
Bal yul mchod rten 'phags pa shing kun dang de'i gnas gzhan rnams kyis dkar chag mdor bsdus. Main work is by Nas lung Ngag dbang rdo rje. Woodblock in 8 leaves, personal collection.
