David Quinter (2015), From Outcasts to Emperors: Shingon Ritsu and the Mañjuśrī Cult in Medieval Japan, Brill. It has been designed for representing not only Devanagari but also various other Indic scripts as well as a Latin-based script with diacritic marks used for transliteration of the Indic scripts.
This Pin was discovered by Pannkaj Indurkar.