56 The Constitution of the Democratic Socialist Republic of Sri Lanka Prime Minister, appoint any Member of Parliament to act in the place of such Minister of the Cabinet of Ministers, Minister who is not a member of the Cabinet of Ministers or a Deputy Minister. Secretary to the Prime Minister and Secretary to the Cabinet of Ministers 51. (1) (a) There shall be a Secretary to the Prime Minister who shall be appointed by the President. (b) The Secretary shall have charge of the office of the Prime Minister and shall perform and discharge the duties and functions of his office, subject to the directions of the Prime Minister. (2) (a) There shall be a Secretary to the Cabinet of Ministers who shall be appointed by the President. (b) The Secretary shall, subject to the direction of the President, have charge of the Office of the Cabinet of Ministers, and shall discharge and perform such other functions and duties as may be assigned to him by the President or the Cabinet of Ministers. Secretaries to Ministries 52. (1) There shall be a Secretary for every Ministry of a Minister of the Cabinet of Ministers, who shall be appointed by the President. (2) The Secretary to a Ministry shall, subject to the direction and control of his Minister, exercise supervision over the departments of Government and other institutions in charge of the Minister. (3) Notwithstanding the dissolution of the Cabinet of Ministers under the provisions of the Constitution, the Secretary to a Ministry shall continue to hold office until a new Secretary is appointed to such Ministry, in terms of the provisions of the Constitution: Provided however, the Secretary to a Ministry shall cease to hold office upon a determination by the President under Article 44 or 45 which results in such Ministry ceasing to exist.