Which of the following acts introduced the system of dyarchy in the provincial administration in India?

Explanation

The Government of India Act of 1919 introduced the system of dyarchy in the provincial administration in India. Under this system, the executive authority in the provinces was divided between the British officials and the Indian ministers. It was a dual system of governance, where certain areas (like finance, law, and order) were under the control of the British, while others (like agriculture, health, and education) were entrusted to Indian ministers.