138. (1) The chairman and other members of each public service commission shall be appointed by the President: Provided that not less than one half of the members of a commission shall be persons who have held office for twenty years or more in the service of any government which has at any time functioned within the territory of Bangladesh. (2) Subject to any law made by Parliament the conditions of service of the chairman and other members of a public service commission shall be such as the President may, by order, determine.