law: Railways Act, 1989
  79. Weighment of consignment on request of the consignee
  
  or endorsee.  
  A railway administration may, on the request made by the
  
  consignee or endorsed, allow weighment of the consignment subject to such
  
  conditions and on payment of such charges as may be prescribed and the
  
  demurrage charges if any:
  Provided  that except in cases where a railway servant
  
  authorized in this behalf considers it necessary so to do, no weighment shall
  
  be allowed of goods booked at owner's risk rate or goods which are perishable
  
  and are likely to lose weight in transit:
  Provided  further that no request for weighment of
  
  consignment in wagon-load or train-load, shall be allowed if the weighment is
  
  not feasible due to congestion in the yard or such other circumstances as may
  
  be prescribed.