The Government of India Act of 1919, also known as the Montagu-Chelmsford Reforms, marked a significant step in the constitutional development of British India.
A key feature of this Act was the introduction of dyarchy (or dual government) in the provincial administration.
Under dyarchy, the provincial subjects were divided into two categories: reserved and transferred.
Reserved subjects, such as law and order, finance, and land revenue, were administered by the Governor and his Executive Council, who were not responsible to the provincial legislature.
Transferred subjects, including education, public health, and local self-government, were administered by the Governor with the advice of ministers who were members of the provincial legislative council and responsible to it.
This system aimed to provide a measure of popular control over the administration, albeit in a limited form.
The Act also expanded the size and functions of the provincial legislative councils and introduced direct elections for the first time.
Dyarchy, however, proved to be an impractical and ultimately unsuccessful experiment, leading to conflicts and paralysis in governance. It was eventually abolished by the Government of India Act of 1935.