Explanation: Just six months before the Montford Reforms were to be put into effect; two bills were introduced in the Imperial Legislative Council.

• One of them was dropped, but the other—an extension to the Defence of India Regulations Act 1915—was passed in March 1919.
• It was what was officially called the Anarchical and Revolutionary Crimes Act, but popularly known as the Rowlatt Act.

Source: Spectrum