Section 28: President.

The office of President shall become vacant:— a) on the expiration of the period mentioned in subsection (1) of Section 25 of this Constitution; or b) if the incumbent dies or resigns the office or ceases to hold office in pursuance of Section 30 or Section 31 of this Constitution. Provided that the President shall not resign his office or retire even at the due expiration of his office while a general election of Members of Parliament is pending within the ensuing six months, or where a state of public emergency has been declared.