law: Trade Union Act, 1926 
  4. Mode of registration 
   10  [(1) Any seven or more members of a trade union may, by
  
  subscribing their names to the rules of the trade union and by otherwise
  
  complying with the provisions of this Act with respect to registration, apply
  
  for registration of the trade union under this Act.
   13  [(2) Where an application has been made under sub-section
  
  (1) for the registration of a trade union, such application shall not be deemed
  
  to have become invalid merely by reason of the fact that, at any time after the
  
  date of the application, but before the registration of the trade union, some
  
  of the applicants, but not exceeding half of the total number of persons who
  
  made the application, have ceased to be members of the trade union or have
  
  given notice in writing to the Registrar dissociating themselves from the
  
  application.]