Government of India Acts — Key Changes

Entry	Year	Description	Impact
Indian Councils Act	1861	This Act 'amended' the existing legislative framework by decentralizing legislative powers, restoring them to Madras and Bombay Presidencies. It also introduced Indians into the Viceroy's legislative council, a significant departure from previous exclusive British control.	Marked the beginning of representative institutions in India and the portfolio system. It was a direct response to the 1857 Revolt, aiming to associate Indians with governance for better administration.
Indian Councils Act	1892	This Act 'amended' the 1861 Act by increasing the number of non-official members in both central and provincial legislative councils. It introduced the principle of indirect election for some members and expanded the deliberative functions of the councils.	A cautious step towards representative government, allowing limited discussion of the budget and asking questions. It was a response to the growing demands of the Indian National Congress for greater representation.
Indian Councils Act (Morley-Minto Reforms)	1909	This Act 'amended' previous Acts by significantly increasing the size of legislative councils and introducing separate electorates for Muslims. It also allowed Indians to be appointed to the Viceroy's Executive Council.	Deepened communal divisions in India by institutionalizing communal representation. While it expanded Indian participation, it retained an official majority at the Centre and limited real power, leading to widespread nationalist criticism.
Government of India Act (Montagu-Chelmsford Reforms)	1919	This Act 'amended' the 1909 Act by introducing 'dyarchy' in the provinces, dividing subjects into 'transferred' and 'reserved'. It also established a bicameral legislature at the Centre and explicitly aimed for 'responsible government' in India.	A significant, though flawed, step towards responsible government in provinces. Dyarchy proved unworkable, but the Act's preamble declared the British intention to introduce self-governing institutions, raising nationalist expectations.
Government of India Act	1935	This comprehensive Act 'amended' all previous constitutional arrangements. It proposed an All-India Federation, introduced provincial autonomy (abolishing dyarchy in provinces), established dyarchy at the Centre, and provided for a Federal Court.	The most influential pre-independence Act, forming a blueprint for the Indian Constitution. It granted significant provincial self-governance but retained ultimate British control through Governor-General's and Governor's special powers. The federal part never materialized.