Baba Jaimal Singh is known to the devotees with the name of Baba ji Maharaj. Baba Ji is the founder Of Dera,Radha Soami satsang Beas which is known by the name Dera Baba Jaimal Singh.

Baba Jaimal Singh ji was born in village Lath Ghuman near Batala, Distt. Gurdaspur, Punjab, India, in July 1839.Baba Ji was a dvotee of Bhakt Naamdev ji and Baba ji started visiting him at the age of four.

At the age of 12-13 years he started studying Guru Granth Sahib at home,He came to realise that Guru Granth Sahib rejects the rituals like fasting,temple worship and bathing on pilgrimages etc,he understood that to find the God in innerself,one need to find a true Master,so he began to search for the master.After the journey of 2 years in norhthen India,he found the true master in Soami Shiv Dyal Ji of Agra.

From June 7, 1889 and Baba Ji started living in his village, and later built a hut near river Beas,with the passage of time the number of devotees increases and then baba ji built a Dera near river Beas.He found his successor in Baba Sawan Singh.He left his mortal body on Dec 29, 1903.