Hi Lexy, I just found this reference from his other son's website (and an early picture of him I'd never seen before):

"Shri Maharaj Ji first of all taught and revealed the Knowledge of the Divine Light and Holy Name in Sindh and Lahore in what is now Pakistan. From 1930 onwards he began visiting Delhi in order to reach out to more people. He stayed in a small room in Bagh Raoji, situated in the suburb of Karol Bagh near the giant Delhi Cloth Mills. His following gradually grew as he patiently kindled the lamp of Knowledge in others, one at a time. Soon a group of workers from the Delhi Cloth Mills became interested in him and visited him regularly..."