You may wish to look into the surviving, vestigial manifestation, in the form of the guṭhī of Newar society in Kathmandu. There is a Wikipedia article on the subject https://en.wikipedia.org/wiki/Guthi

(though it's misspelled there with a dental instead of retroflex consonant). But I imagine that the literature on Newar sociology and anthropology with have more - perhaps some of the others on the list can help with bibliography in that area.


Matthew


Matthew Kapstein
Directeur d'études,
Ecole Pratique des Hautes Etudes

Numata Visiting Pro
fessor of Buddhist Studies,
The University of Chicago