SUNDAR SIṄGH, BHĀĪ (1898-1924), one of the Jaito martyrs, was born the son of Bhāī Mansā Siṅgh and Māī Rāj Kaur of Karamgaṛh Satrāṅ village, 20 km west of Baṭhiṇḍā. After attending school for two years at the village of Koṭ Bhāī, he shifted over to a Gurmukhī school where he practised the reading of the Gurū Granth Sāhib. He received the rites of the Khālsā at the age of 12 and stayed for a few years at Amritsar further to study the Sikh texts.

        He enlisted during World War I in the transport wing of the army, and served in the Peshāwar-Laṇḍī Kotal region of the North-West Frontier Province for a few years. Sundar Siṅgh resigned soon after the Nankāṇā Sāhib occurrence and turned an Akālī activist. He was named secretary of the Baṭhiṇḍā tahsīl Akālī Jathā. Shortly before the tragedy at Jaito, he had injured his knee in a fall from his horse, but he insisted on going to watch the progress of the first Shahīdī Jathā, and assisted by his elder brother Indar Siṅgh and Jathedār Khetā Siṅgh, met the Jathā at its last halt at Bargāṛī. He was limping along a flank of the front lines of the Jathā during its march towards Jaito on 21 February 1924 when on its approach near Gurdwārā Ṭibbī Sāhib, the Nābhā state forces opened fire on the advancing multitude. Bhāī Sundar Siṅgh was hit in the neck and killed on the spot.

Gurcharan Siṅgh Giānī