The Rowlatt Act was passed by the British Indian government on March 18, 1919. The purpose of the act was to enable the government to exercise the emergency powers that it had acquired during the First World War. The act allowed the government to maintain preventive detention and arrest without trial. The act was enacted to curb the growing revolutionary activities in the country that had emerged after the war. The act also imposed severe curbs on the press.
The act provoked widespread protests, particularly in Punjab. One such protest led to the Jalianwala Bagh massacre on April 13, 1919. The act was finally revoked in 1922.