c. 67) was an Act of the Parliament of the United Kingdom that transformed India's executive council to function as a cabinet run on the portfolio system.

[2] This cabinet had six "ordinary members", who each took charge of a separate department in Calcutta's government: home, revenue, military, law, finance, and (after 1874) public works.

The Viceroy was allowed, under the provisions of the Act, to overrule the council on affairs if he deemed it necessary, as was the case in 1879, during the tenure of Lord Lytton.

The Viceroy was allowed to issue ordinances lasting six months if the Legislative Council is not in session in an emergency.

[5] However, from India's point of view, the act did little to improve the influence of Indians in the legislative council.