MĀN SIṄGH, JUSTICE (1887-1949), known as Bhāī Mān Siṅgh up to his thirties, was born in 1887 at Ambālā, now in Haryāṇā, the youngest of the three sons of Nand Siṅgh who had fought against the British in the second Anglo-Sikh war (1849) and had then worked under them as superintendent of excise. Mān Siṅgh, who became an orphan at a very young age, attended successively Mission High School and A.S. High School in his native town and later joined the Khālsā College at Amritsar. While at school he had founded an association of Sikh youth, Khālsā Bhujhaṅgī Dal, and now in Amritsar he took a leading part in setting up Khālsā Young-men Association and was the editor of its journal from 1905 to 1909. He was still reading for his B.A. final, when he was nominated a member of the Chief Khālsā Dīwān. After his graduation he joined the Law College at Lahore and, on completing his Bachelor's course, returned to Ambālā to start his legal practice. He was elected to the Central Legislative Assembly from the East Punjab Sikh Constituency in 1921.

         In 1922, Mān Siṅgh shifted to Lahore and practised as a lawyer at the Punjab Chief Court. He was vice-president of the Chief Khālsā Dīwān from 1923 to 1925 and secretary of the reception committee of the Sikh Educational Conference session held at Lahore in 1926. He was legal adviser to the Shiromaṇī Gurdwārā Parbandhak Committee from 1926 to 1929. From 1930 to 1932, he worked as an officiating judge of the High Court in Paṭiālā state. In 1935, he was appointed a judge of the Sikh Gurdwārās Tribunal and president of the Sikh Gurdwārās Judicial Commission. He worked in that capacity up to 1943 when he was appointed a member of the Judicial Committee in the princely state of Farīdkot. The Judicial Committee heard appeals arising from the judgements of the Farīdkoṭ High Court. Mān Siṅgh retained this position until the formation of Patiālā and East Punjab States Union (PEPSU) in 1948. In November 1948, he was appointed an officiating judge of the newly established High Court of PEPSU.

         Besides his legal work, Mān Siṅgh translated into Punjabi verse two Sanskrit classics Vikramorvaśī by Kālidāsa and Vairāgya Śataka by Bhartrīhari. He also contributed articles regularly to several of the Sikh magazines and newspapers. Among the tracts he wrote in Punjabi was Science te Astiktā which became popular reading. His translation of Khyām's Rubā'īāt remained unfinished.

        Mān Siṅgh died at Patiālā on 7 January 1949.