Casual vacancies how to be filled up

(1) Where a vacancy occurs through the non-acceptance of office by any elected Councillor or such person being disqualified for becoming or continuing to be a Councilor, or any election being set aside under the provisions of section 22 or the death, resignation, removal or disability of a Councillor previous to the expiry of his term of office, the vacancy shall be filled by a bye-election according as the Councillor was elected: Provided that no bye-election shall be held to fill up a vacancy occurring within four months prior to the date on which the term of office of the Councillors of the Council expires. (2) The Chief Officer shall report to the Director every vacancy in the office of a Councillor within fifteen days of the occurrence of the vacancy or within fifteen days of his becoming aware of the vacancy, whichever is later