On his discharge from the army, Bhai Lachhman Singh settled down as a Gurdwara officiant at Chakk No. 83 Dalla Nangal, in Sheikhupura district. He was drawn into the Gurdwara movement for the reform and management of Sikh shrines. He registered himself as an Akali volunteer and attained martyrdom along with Bhai Lachhman Singh Dharovali`sjatha inside the compound of Gurdwara Janam Asthan on 20 February 1921. See NANKANA SAHIB MASSACRE
References :
1. Shamsher, Gurbakhsh Singh, Shahidi Jivan. Nakana Sahib, 1938