law: Railways Act, 1989
  73. Punitive charge for overloading a wagon. 
  Where a person loads goods in a wagon beyond its permissible
  
  carrying capacity as exhibited under sub-section (2) or sub-section (3), or
  
  notified under sub-section (4), of section 72, a railway administration may, in
  
  addition to the freight and other charges, recover from the consignor, the
  
  consignee or the endorsee, as the case may be, charges by way of penalty at
  
  such rates. as may be prescribed, before the delivery of the goods:
  Provided  that it shall be lawful for the railway
  
  administration to unload the goods loaded beyond the capacity of the wagon, if
  
  detected at the forwarding station or at any place before the destination
  
  station and to recover the cost of such unloading and any charge for the
  
  detention of any wagon on this account