18.(1) Every ²[* * *] person who is by virtue of his office, or who is nominated to be, a member of a Board shall, before taking his seat, make at a meeting of the Board an oath or affirmation of his allegiance in the following form, namely:-I, ..............., having become/been nominated a member of this Board, do solemnly swear (or affirm) that I will bear true faith and allegiance to Bangladesh and that I will faithfully discharge the duty upon which I am about to enter. (2) If any such person fails to make the oath or affirmation within such time as the Government considers reasonable, the Government shall, by notification in the official Gazette, declare his seat to be vacant.