The Constitution provides that there shall be a Council of Ministers with Chief Minister as the head to aid and advise the Governor in the exercise of his functions except in the cases where Governor acts in his own discretion. The Governor appoints the Chief Minister and other Ministers on the advice of the Chief Minister. The Minister holds office during the pleasure of the Governor. The number of Ministers is not fixed. It is for the Chief Minister to determine the size. The Council of ministers are collectively responsible to Legislative Assembly of the State.