and Ruhani Satsang. The largest branch is the Radha Soami Satsang Beas (RSSB) with the headquarters in Beas City, established by one of Shiv Dayal Singh 's disciples, Jaimal Singh, in the North Indian state of Punjab in the 1891, who practised Surat Shabd Yoga on the bank of river Beas. The Beas has grown enormously over the decades under the guiding hands of each subsequent successor (from Sawan Singh to Sardar Bahadur Maharaj Jagat Singh and Maharaj Charan Singh to the current master, Gurinder Singh). There are estimated to be two million initiates of the Beas masters worldwide. The one of a split the Beas is Dera Sacha Sauda (1948) led by Mastana Balochistani. In Agra, the birthplace of the movement, there are three main satsang centers of branches. The Radha Soami Satsang Soami Bagh Agra with center at Soami Bagh occupies the original site in Agra, where a large memorial tomb is being built to honor the movement founder, and administered by the Central Administrative Council which established by second successor Maharaj Saheb in 1902. The second center is Peepal Mandi, which was founded by Rai Salig Ram who was then succeeded by his son, grandson, and currently his great-grandson, Agam Prasad Mathur. And the largest of the Agra-based branches is Radha Soami Satsang Dayalbagh with center at Dayalbagh, which is located across the street from Soami Bagh. This branch was founded in 1907 at Ghazipur by Kamta Prasad Sinha and in 1913 the headquarters were moved to Agra, it has flourished under the following leadership of Anand Sarup, Gurcharandas Mehta, Dr. M.B. Lal Sahab, and most recently as of this date Prof. Prem Saran Satsangi. The Ruhani Satsang ( Kirpal Light Satsang) in Delhi, founded by Kirpal Singh, a disciple of the Beas master, Sawan Singh, became popular in the United States under the leadership of Thakar Singh. The Ruhani Satsang followed by the Sawan Kirpal Ruhani Mission and its international organization Science of Spirituality (SOS), founded by Kipral Singh's son. Other Radha Soami subtraditions and groups that have garnered a significant following include Manavta Mandir, established by Baba Faqir Chand in 1962 at Hoshiarpur in the Punjab; the Tarn Taran satsang founded by Bagga Singh; Radha Swami Satsang Dinod, founded by Param Sant Tarachand Ji Maharaj (Bade Maharaj Ji), current master Param Sant Huzur Kanwar Saheb Ji Maharaj and several others scattered through North and South