law: Sale of Goods Act, 1930
  25. Reservation of right of disposal
  (1) Where there is a contract for the sale of specific goods or
  
  where goods are subsequently appropriated to the contract, the seller may, by
  
  the terms of the contract or appropriation, reserve the right of disposal of
  
  the goods until certain conditions are fulfilled. In such case, notwithstanding
  
  the delivery of the goods to a buyer, or to a carrier or other bailee for the
  
  purpose of transmission to the buyer, the property in the goods does not pass
  
  to the buyer until the conditions imposed by the seller are fulfilled.
   6  [(2) Where goods are shipped or delivered to a railway
  
  administration for carriage by railway and by the bill of lading or railway
  
  receipt, as the case may be, the goods are deliverable to the order of the
  
  seller or his agent, the seller is prima facie deemed to reserve right of
  
  disposal.
  (3) Where the seller of goods draws on the buyer for the price
  
  and transmits to the buyer the bill of exchange together with the bill of
  
  lading or, as the case may be, the railway receipt, to secure acceptance or
  
  payment of the bill of exchange, the buyer is bound to return the bill of
  
  lading or the railway receipt if he does not honor the bill of exchange; and,
  
  if he wrongfully retains the bill lading or the railway receipt, the property
  
  in the goods does not pass to him.
  Explanation : In this section, the expressions
  
  "railway" and "railway administration" shall have the
  
  meanings respectively assigned to them under the Indian Railways Act, 1890.]