The 1919 Indian Councils Act established a new bicameral central legislature and expanded provincial legislatures. It divided government administration into central, provincial, reserved, and transferred subjects. The central legislature consisted of a Council of State and Central Legislative Assembly. Provincial governments were divided between ministers responsible for transferred subjects and governors administering reserved subjects with executive councils. However, this system of diarchy proved problematic due to lack of cooperation between ministers and executive councils, as well as ministers' limited powers over personnel and finances.