Yogāmbarāvidhi is a tantric ritual text extracted from the Ātmapiṭha of Catuḥpīṭha Bṛhatmahātantra. The Catuḥpīṭha is a yoginītantra comprising four subchapters, centered on a pantheon of 13 goddesses led by Jñānaḍākinī, whose consort is Yogāmbara. The Yogāmbarasādhanavidhi, a satellite text of the Catuḥpīṭha, is attributed to Jagadānandajīvabhadra (fl. 14th c. CE) and is the most widely circulated ritual manual of Yogāmbara in Nepal. In this mss, folia 1–24 are newly written, and the rest of the mss. is old. (Selected Chapters from the Catuṣpīṭhatantra by Peter Daniel Szanto, 6–17)
General Library, The University of Tokyo
Decent, first 24 folios are newly written, leaves from fol 25a are slightly old.