21. Which one of the following Acts of British India strengthened the Viceroy's authority over his Executive Council by substituting "Portfolio" or departmental system for corporate functioning?
(a) Indian Council Act, 1861
The Indian Councils Act of 1861 transformed the viceroy's Executive Council into a miniature cabinet run on the portfolio system, and each of the five ordinary members was placed in charge of a distinct department of Calcutta's government.