SUNDAR SIṄGH JATHEDĀR, BHĀĪ (1869-1921), one of the Nankāṇā Sāhib martyrs, was the son of Bhāī Bishan Siṅgh and Māī Indar Kaur of village Ḍhuḍiāl, in Jalandhar district. His ancestors came from Baṇḍālā village in Amritsar district where they had served in the chiefship of Sardār Baghel Siṅgh of the Karoṛsiṅghīā misl. Sundar Siṅgh learnt Gurmukhī in the village gurdwārā and fondly recited passages from the Sikh texts. He had received the vows of the Khālsā at Srī Anandpur Sāhib and had since punctiliously observed the Khālsā rahit. On 19 February 1921, as the call for action came, he led out a 15-strong jathā and joined Bhāī Lachhmaṇ Siṅgh Dhārovālī's men on their way to Nankāṇā Sāhib. He laid down his life along with others on the morning of 20 February 1921. See NANKĀṆĀ SĀHIB MASSACRE.

        The Shiromaṇī Gurdwārā Parbandhak Committee paid off the family's debt of Rs 502 and granted it a pension of Rs 200 per annum jointly to the two widows. The villagers of Dhannūāṇā raised a memorial, Shahīd Gañj (lit. martyrs' memorial). Weekly congregations took place on Sundays. Likewise an annual memorial fair which drew a large number of people to the site kept the memory of the martyrs alive. This continued up to the partition of the country in 1947 which cut the Punjab into two parts obliterating several such signposts.