The Constitution of the Democratic Socialist Republic of Sri Lanka by the person declared elected as President. If the office of President becomes vacant, by reason of the person declared elected as President failing to assume office, the President in office shall continue to exercise, perform and discharge the powers, duties and functions of the office of President, until the Prime Minister or if the office of Prime Minister be then vacant or if the Prime Minister be unable to act, the Speaker commences to act in the office of President in terms of Article 40; (c) if by reason of the death referred to in subparagraph (a) there is a vacancy in the office of President, the Prime Minister shall act in the office of President during the period between the occurrence of such vacancy and the assumption of office by the new President and shall appoint one of the other Ministers of the Cabinet to act as Prime Minister: Provided that if the office of Prime Minister be then vacant or the Prime Minister is unable to act, the Speaker shall act in the office of President.] (5) The election of the President shall be conducted by the Commissioner of Elections who shall fix the date for the nomination of candidates for such election and the date on which the poll shall be taken. (6) Parliament shall by law make provision for – (a) the nomination of candidates for the election of President; (b) the register of electors to be used at and the procedure for the election of the President; (c) the creation of offences relating to such election and the punishment therefor; (d) he grounds and manner of avoiding such election and of determining any disputed election; and (e) all other matters necessary or incidental thereto. 32. (1) The person elected or succeeding to the office of President shall assume office upon taking and subscribing the oath or making and subscribing the affirmation, set out in the Fourth Schedule, in Sri Lanka before the Chief Justice or any other Judge of the Supreme Court. Assumption of office 23