Explanation : A person shall be deemed to belong to the Safai Mazdoor class if he belongs to such a class of scavengers by occupation or to such of the Scheduled Castes traditionally fol lowing such occupation as may be notified by the State Government] : [Provided also that a member nominated under this section, whether before or after February 15, 1990 shall hold office during the pleasure of the State Government, but not beyond the term of the Board.]" "[47 A. Resignation of President of vote of non confidence. (1) If a motion of non confidence in the President has 45 been passed by the board and communicated to the President in accordance with the provisions of Section 87 A, the President shall (a) With three days or the (receipt) of such communication, either resign his office or represent to the State Government to (supersede) the board stating his reasons therefore, and [(b) unless he resigns under clause (a), cease to hold office of President on the expiry of three days after the date of receipt of such communication, and thereupon a casual vacancy shall be deemed to have occurred in the office of the President within the meaning of Section 44 A: Provided that.if a representation has been made in accordance with clause (a) the board shall not elect a President until an order has been made by the State Government under sub section (3)].