Section 23Vacation of office of directors, etc

becomes subject to any of the disqualifications mentioned in section 22; or

resigns his office by giving notice in writing under his hand, in the case of the [chairman *** and amanaging director] to the Central Government and in the case of other directors or members of Local Boards or Committees, to the Central Board, and the resignation is accepted; or

is absent without leave of the Central Board, the Local Board or the Local Committee of which he is a director or member, as the case may be, for more than three consecutive meetings thereof;

his seat shall thereupon become vacant.

[Provided that nothing in clause (c) shall apply to the chairman in relation to his membership of a Local Board or of a Local Committee.]