law: Railways Act, 1989
  54. Exhibition and surrender of passes and ticket.  
  Every passenger shall, on demand by any railway servant
  
  authorized in this behalf, present his pass or ticket to such railway servant
  
  for examination during the journey or at the end of the journey and surrender
  
  such ticket- 
  (a) at the end of the journey, or
  (b) if such ticket is issued for a specified period, on the
  
  'expiration of such period.