Was born at Pandori Nijjharan, in Jalandhar district in November 1889, the son of Bhai Seva Singh and Mai Atar Kaur. On the opening of the Lower Chenab Canal Colony, the family migrated in 1897 to Chakk No. 91 Dhannuana in Lyallpur (now Faisalabad) district, in Pakistan.

Hari Singh enlisted in the 36th Sikh Battalion where he took the Khalsa pahul and fought in the World War, 1914-18. A bullet wound tore apart his foot, incapacitating him. He was discharged with a pension of Rs 6 per month.

Following the example of Jathedar Sundar Singh of his own village, he joined the jatha of Bhai Lachhman Singh of Dharovali and attained martyrdom inside Gurdwara Janam Asthan, Nankana Sahib, on 20 February 1921. The martyr's mother was granted a pension of Rs 115 per annum by the Shiromani Gurdwara Parbandhak Committee of Amritsar.

Source: Encyclopaedia of Sikhism, Harbans Singh