SS Harbhajan Singh Khalsa has been a minister of Sikh Dharma since 1991. He has a long history of serving and protecting the Siri Singh Sahib and the Dharma. Beginning in 1984, he was in charge of security for every winter and summer solstice. Over the years, he served in that capacity for most of the yatras to India, protecting both the Siri Singh Sahib and the sangat. Back home, Harbhajan Singh would be the one driving the protection vehicle behind the car transporting the Siri Singh Sahib.
Since 2011, Harbhajan Singh has served on the Board of Directors for SikhNet, applying his master degree with project management and IT technical expertise to support the company through all its recent transitions.