In 1915 he joined the Khalsa school at Jhabal in Amritsar district as a Punjabi teacher, ishar Singh returned to his native place to become the custodian of the village gurudwara. When Bhai Lachhman Singh gave the call for the liberation of Gurdwara Janam Asthan at Nankana Sahib, he joined his jathd and fell a martyr in the shower of bullets rained upon it by the local keeper of the shrine and his men on the morning of 20 February 1921.
References :
1. Shamsher, Gurbakhsh Sirigli, Shahidi Jivan. Nankana Sahib, 1938