law: Indian Ports Act, 1908
  39. Master to report arrival 
  (1) Within twenty-four hours after the arrival within the limit
  
  of any port subject to this Act of any vessel liable to the payment of
  
  port-dues under -this Act, the master of the vessel shall report her arrival to
  
  the conservator of the port.
  (2) A master failing without lawful excuse to make such within
  
  the time aforesaid shall for every such offence be punishable with, fine which
  
  may extend to one hundred rupees.
  (3) Nothing in this section applies to tug-steamers, ferry
  
  steamers or river steamers plying to and from any of the ports subject to this
  
  Act 55[***]