Sant Charan Singh Ji Grewal (1916–1990) was the fourth chief of Radha Soami Satsang Beas. He became chief in 1951 following the death of Sardar Bahadur Ji Maharaj Jagat Singh, and served the Beas sangat until his death at the age of 73. Before his appointment as successor he practiced law in Hisar and Sirsa. He was an initiate of Baba Sawan Singh (who was his paternal grandfather) and he was the successor of Sardar Bahadur Jagat Singh. His own successor and the present Chief of RSSB is Baba Gurinder Singh Dhillon, his nephew.
The Philosophy of Radha Soami Satsang Beas
The Beas branch of Radha Soami gurus teach a spiritual philosophy they say is based on the teachings of mystics from all religions. Their headquarters have been at Dera Baba Jaimal Singh, near Beas in the Amritsar district of northern India since 1891. Radha Soami Satsang Beas, with centres located worldwide, is a registered non-profit, charitable society, independent of any political or commercial affiliations. ]
- S.Harbans Singh Grewal (Father)
- Baba Sawan Singh Ji (Grandfather)
- S.Kabal Singh Grewal Ji (Great grandfather)
- S.Sher Singh Ji (Great great grandfather )