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 conditions of service of persons appointed to All India Services.

23. Part V of the Constitution deals with the Union. Article 53 states that the executive power of the Union shall be vested in the President and shall be exercised by him either directly or through officers subordinate to him in accordance with this Constitution. Article 154 of Chapter VI of the Constitution states that the executive power of the State shall be vested with the Governor and shall be exercisable by him either directly or through officers subordinate to him in accordance with the Constitution. Article 73 of the Constitution states that subject to the provisions of the Constitution executive power of the Union shall extend to matters with respect to which Parliament has power to make laws and to the exercise of such rights, authority and jurisdiction, as exercisable by the Government of India by virtue of any treaty or any agreement. Article 163 of the Constitution states that there shall be a Council of Ministers, the Chief Minister as the head to aid and advice the Governor in