Sant Baba Didaar Singh Ji did Seva of Guru Granth Sahib Ji and his beloved Sant Baba Mahinder Singh Ji Harkhowal. Baba Mahinder Singh Ji was blessed with Sangat of Puran Brahm Giyani Sant Baba Jawala Singh Ji. After Baba Mahinder Singh Ji , Sant Baba Didaar Singh ji becomes Mukhi of Harkhowal Samparda. Sant Baba Didaar Singh ji used to pay lots of respect to Shri Guru Granth Sahib Ji. When Baba Diddar Singh Ji used to bow Guru Sahib Ji and Baba ji never turned his back towards Guru Garnth sahib ji after coming back from bowing Guru ji.