If a director of the Central Board or a member of a Local Board or a Local Committee—
(a)becomes subject to any of the disqualifications mentioned in section 22; or
(b)resigns his office by giving notice in writing under his hand, in the case of the 6[chairman 7*** 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
(c)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.
1[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.]