law: Societies Registration Act, 1860
  12. Societies enabled to alter, extend or
  
  abridge their purposes
  Whenever it shall appear to the governing body
  
  of any society registered under this Act, which has been established for any
  
  particular purpose or purposes, that it is advisable to alter, extend, or
  
  abridge such purpose to or for other purposes within the meaning of this Act,
  
  or to amalgamate such society either wholly or partially with any other
  
  society, such governing body may submit the proposition to the members of the
  
  society in a written or printed report, and may convene a special meeting for
  
  the consideration thereof according to the regulations of the society;
  but no such proposition shall be carried into
  
  effect unless such report shall have been delivered or sent by post to every
  
  member of the society ten days previous to the special meeting convened by the
  
  governing body for the consideration thereof, nor unless such proposition shall
  
  have been agreed to by the votes of three-fifths of the members delivered in
  
  person or by proxy, and confirmed by the votes of three-fifths of the members
  
  present at a second special meeting convened by the governing body at an
  
  interval of one months after the former meeting.