One of the Akali reformers who fell martyr at Nankana Sahib during the reformation of the holy shrines there, was born in 1894, the son of Bhai Mahitab Singh and Mai Ichchhar Kaur of the village of Daroli in Jalandhar district. The family later shifted to Shahkot, a small town in Sheikhupura district in the newly developed Lower Chenab Canal Colony where he earned a modest income as a draper-cum-tailor.

As the movement for Gurdwara reform was picking up momentum towards the end of the second decade of the 20th century, he turned an Akali and took part in the liberation of Gurdwara Babe di Ber on 4-5 October 1920. He was also present on the occasion of the occupation of Sri Akal Takht by the Panth on 12 October 1920, and later participated in the liberation of Gurdwara Khara Sauda and the one at Gojra. He joined Bhai Lachhman Singh Dharovali's column to have the Gurdwara Janam Asthan released. He fell a victim to a bullet shot on 20 February 1921.

Bhai Indar Singh was survived by his mother, wife and two minor sons. A pension of Rs 20 per month was granted to them by the Shiromani Gurdwara Parbandhak Committee, who also discharged the family debt of Rs 1000.

Source: Encyclopaedia of Sikhism, Harbans Singh