law: The Regional Rural Banks Act, 1976
  13. Vacation of the seat of
  
  directors
  1.  If
  
  a director-
  a.  
  
    Becomes
  
  subject to any disqualification specified in section 12, or
  b.  
  
    Is
  
  absent without leave of the Board for more than three consecutive meetings
  
  thereof. His seat shall thereupon become vacant.
  1.  
  2.  The
  
  Chairman may resign his office by giving notice thereof in writing to the
  
  Central Government and a director may resign his office by giving notice
  
  thereof to the authority by which he was nominated; and, on such resignation
  
  being accepted, the Chairman or the director, as the case may be, shall be
  
  deemed to have vacated his office.