Sikh leader known chiefly for his advocacy of an autonomous Punjabi-speaking (Punjab) Sikh nation in the Punjab. He was a champion of Sikh rights against the dominant Hindus, Muslims, and British.

Tara Singh was born a Hindu, but while a student in Rāwalpindi he became attracted to Sikhism and underwent the required initiation ceremony. Upon graduation from Khālsā College at Amritsar in 1907, he entered the Sikh school system in Lyallpur, becoming a high school teacher, or “master,” a title associated with him thereafter.

A devout worker for the cause of Sikh religious and political integrity, Tara Singh often found himself in opposition to civil authority. He was jailed for civil disobedience 14 times between 1930 and 1966. In 1930 he became deeply involved with the civil-disobedience movement and was a leader of the Sikhs' Akālī Dal party and the Central Gurdwārā Management Committee. He was best known as an agitator for a Punjabi-speaking state in which Sikh religious and political traditions would remain intact.

In 1961 Tara Singh declared that he would fast until the Indian prime minister, Jawaharlal Nehru (Nehru, Jawaharlal), ceded a portion of the Punjab as a Sikh state or until death claimed him. He began his fast in August at the Golden Temple at Amritsar, but Nehru responded that submission to Tara Singh's demands would be against India's secular constitution and unfair to the Hindus in the Punjab. After a personal letter from Nehru promising to investigate Sikh claims, Tara Singh broke his 48-day fast, incurring the wrath of the Sikh people. Tara Singh was brought to trial before a council of pijaras (Sikh religious leaders) and pleaded guilty. His failure to starve to death in defense of his ideals had discredited him as a leader, and Sant Fateh Singh was elected in his place. Tara Singh's dream of a Punjabi-speaking state was realized in 1966, when the present Indian state of Punjab was created.