The Constitution of the Democratic Socialist Republic of Sri Lanka (5) The office of the Secretary-General shall become vacant (a) upon his death; (b) on his resignation in writing addressed to the President; (c) on his attaining the age of sixty years, unless Parliament otherwise provides by law; (d) on his removal by the President on account of ill health or physical or mental infirmity; or (e) on his removal by the President upon an address of Parliament. 52 [(6) Whenever the Secretary-General is unable to discharge the functions of his office, the President may Subject to the approval of the Constitutional Council, appoint a person to act in the place of the Secretary-General.] 66. The seat of a Member shall become vacant – (a) upon his death; Vacation of seats (b) If, by a writing under his hand addressed to the Secretary-General of Parliament, he resigns his seat; (c) upon his assuming the office of President consequent to his election to such office, either by the People or by Parliament; (d) if he becomes subject to any disqualification specified in Article 89 or 91; (e) if he becomes a member of the Public Service or an employee of a public corporation or, being a member of the Public Service or an 52 - Substituted by the Twenty First Amendment to the Constitution Sec. 7(2). 67