Archive video: HH Shri Mataji Nirmala Devi and the Sahaja yogis at a Gondhal (drama) performed by disciples of Swarupananda. With bhajans. Kolhapur, Maharashtra, India. (1983-0101)
Shri Mataji's Talk (in English) is at 1hr.10 (approx 5 mins)
Note: this probably refers to disciples of Swami Swarupananda of Pawas (near Ratnagiri) (1903-1974) who was part of the Nath yoga tradition in Maharashtra.