Secretary of State for India Edwin Montagu announces in the UK Parliament that British policy is the “gradual development of self-governing institutions” in India, aiming at the progressive realization of responsible government—setting the political framework for the Montagu–Chelmsford reforms.
Montagu travels to India and, with Viceroy Lord Chelmsford, consults widely on constitutional change—work that directly feeds into the subsequent reform report and legislation.
A commission chaired by Justice Sidney Rowlatt is established to investigate “revolutionary” conspiracies and propose legal measures; its recommendations later underpin the Rowlatt Act, provoking major political backlash.
The Montagu–Chelmsford Report is presented as the reform blueprint, recommending dyarchy in provinces (transferring some portfolios to Indian ministers responsible to elected legislatures) and expanded legislative participation—forming the theoretical basis of the 1919 Act.
The Anarchical and Revolutionary Crimes Act (Rowlatt Act) is passed, extending emergency-style powers such as detention without trial. The act triggers widespread opposition and becomes a key catalyst for mass protest politics in 1919.
All-India protest action (hartal) against the Rowlatt Act helps scale Gandhi’s mass politics, with nonviolent resistance framed as a nationwide response to repressive wartime-style legislation.
British troops under Brig. Gen. Reginald Dyer fire on an unarmed crowd at Jallianwala Bagh, Amritsar, killing hundreds and wounding many more. The massacre becomes a decisive rupture in Indo-British relations and accelerates nationalist mobilization.
The Disorders Inquiry Committee (Hunter Commission) is appointed to investigate the Punjab disturbances and the Jallianwala Bagh massacre, marking an official inquiry that shapes subsequent debates over repression, accountability, and reform credibility.
The UK Parliament enacts the Government of India Act 1919, embedding the Montagu–Chelmsford reforms: bicameral central legislature, expanded franchises and councils, and dyarchy in the provinces—a major constitutional reconfiguration of the Raj short of full responsible government.
Elections are held for the reformed central and provincial legislatures introduced by the Government of India Act 1919. They are widely treated as the first elections of this new constitutional order (amid boycotts and limited franchise).
Gandhi launches the Non-Cooperation Movement, urging withdrawal from colonial institutions and economic supports. The campaign builds on post-1919 grievances (Rowlatt Act, Amritsar) and reframes constitutional reforms as inadequate without mass pressure.
The reconstituted central legislature (including the new Central Legislative Assembly and Council of State) is formally opened in Delhi, operationalizing key structural elements of the Government of India Act 1919.
Violence at Chauri Chaura—where protesters kill police after confrontation—leads Gandhi to halt the Non-Cooperation Movement, underscoring tensions between nonviolent strategy and escalating unrest under the reform-era Raj.
The Rowlatt Act—highly symbolic of wartime repression extended into peacetime—is repealed (via repeal legislation in 1922), closing a major flashpoint that had helped radicalize opposition to the Montagu–Chelmsford reform settlement.
Montagu–Chelmsford reforms and the Government of India Act 1919 (1917-1922)
