1.Rowlatt Acts, (February 1919), legislation passed by the Imperial Legislative Council, the legislature of British India. The acts allowed certain political cases
to be tried without juries and permitted internment of suspects without trial.
2. argued that not everyone should get punishment in response to isolated political crimes. The Act annoyed many Indian leaders and the public, which caused the government to implement repressive measures. Gandhi and others found that constitutional opposition to the measure was fruitless, so on April 6, a "hartal" was organised where Indians would suspend all business and fast as a sign of their opposition and civil disobedience would be offered against specific law. This event is known as the Rowlatt Satyagraha.
3.Harthal refers to strikes in workplaces where the workplace is closed by striking employees. Satyagraha is non-violent protest which what Gandhi used. I means insistence of the truth