<P> The Federal Public Service Commission became the Union Public Service Commission after independence . It was given a constitutional status with under of Constitution of India on 26 January 1950 . </P> <P> Articles 315 to 323 of Part XIV of the constitution, titled as Services Under the Union and the States, provide for a Public Service Commission for the Union and for each state . Accordingly, as per Art . 315, at Union level, Union Public Service Commission is envisaged by it . UPSC is amongst the few institutions which function with both autonomy and freedom, along with the country's higher judiciary and lately the Election Commission . </P> <P> As per Art . 316, the Chairman and other members of Union Public Service Commission shall be appointed by the President . In case the office of the Chairman becomes vacant his duties shall be performed by one of the other members of the Commission as the President may appoint for the purpose . </P> <P> Also, nearly half of the members of the Commission shall be persons who at the dates of their respective appointments have held office for at least ten years either under the Government of India or under the Government of a State . A member of a Union Public Service Commission shall hold office for a term of six years from the date on which he enters upon his office or until he attains the age of sixty - five years, whichever is earlier . Under Art 318, the President is empowered to determine number of members of the Commission and their conditions of service . Further, he can make provision with respect to the number of members of the staff of the Commission and their conditions of service too . Also, conditions of service cannot be varied to his disadvantage after his appointment . </P>

Who appoints the chairman of union public service commission