Rowlatt Act, 1919: This Act passed on March 10, 1919, was introduced by British colonial authorities to suppress nationalist and revolutionary movements in India. The Act opposed by Mahatma Gandhi. India Contract Act,1872: Regulates contracts and agreements in India. Criminal Tribes Act,1871: Targeted criminal tribes” and was repealed in 1952. Indian Slavery Act,1843: Abolished slavery in British india