law: Railways Act, 1989
  69. Deviation of route. 
  Where due to any cause beyond the control of a railway
  
  administration or due to congestion in the yard or any other operational
  
  reasons, goods are carried over a route other than the route by which such
  
  goods are booked, the railway administration shall not be deemed to have
  
  committed a breach of the contract of carriage by reason only of the deviation
  
  of the route.