law: Indian Stamp Act, 1899 
  50. Application for relief under section 49 when to be
  
  made 
  The application for relief under section 49 shall be made within
  
  the following periods, that is to say,- 
  (1) in the cases mentioned in clause (d)(5), within two months
  
  of the date of the instrument;
  (2) in the case of a stamped paper on which no instrument has
  
  been executed by any of the parties thereto, within six months after the stamp
  
  has been spoiled;
  (3) in the case of a stamped paper in which an instrument has
  
  been executed by any of the parties thereto, within six months after the date
  
  of the instrument, or, if it is not dated, within six months after the
  
  execution thereof by the person by whom it was first or alone executed:
  PROVIDED  that,- 
  (a) when the spoiled instrument has been for sufficient reasons
  
  sent out of 3[India], the application may be made within six months
  
  after it has been received back in 3[India];
  (b) when, from unavoidable circumstances, any instrument for
  
  which another instrument has been substituted, cannot be given up to be
  
  cancelled within the aforesaid period; the application may be made within
  
  six-months after the date of execution of the substituted instrument.