(i) The Rowlatt Act was passed in 1919 by the British government despite the united opposition of the Indian members. (ii) It gave enormous powers to the government. (iii) Now, the British government could suppress the political activities, and allow detention of political prisoners without trial for two years.Indian people reacted to it stoutly. Under the leadership of Mahatma Gandhi, they decided to launch a nationwide Satyagraha against the proposed Rowlatt Act (1919). (i) Rallies were organised in various cities. (ii) Workers went on strike in railway workshops. (iii) Shops closed down. To suppress the nationalists the British administration (i) Put the local leaders in jail. (ii) Debarred Mahatma Gandhi from entering Delhi. (iii) On 10 April, the police in Amritsar fired upon a peaceful procession. (iv) On 13 April, the Jallianwalla Bagh incident took place.