law: Indian Ports Act, 1908
  30. Removing stones or. injuring shores of port prohibited
  
   
  (1) No person without the permission of the conservator shall in
  
  any port subjects to this Act remove or carry away any rock, stones, shingle, gravel,
  
  sand or soil or any artificial protection from any part of the bank or shore of
  
  the port.;
  and no person shall sink or bury in any part of such bank or
  
  shore, whether the game is public or private property, any mooring-post, anchor
  
  or any other thing or do any other thing which is likely to injure or to be
  
  used so as to injure such bank or shore, except with the permission of the
  
  conservator, and with the aid or under the inspection of such person, if any,
  
  as the conservator may appoint to take part in or overlook the performance of
  
  such work.
  (2) If any person offends against sub-section (1), he shall for
  
  every such offence be punishable with fine which may extend to one hundred
  
  rupees and shall pay any reasonable expenses which may be incurred in repairing
  
  any injury done by him to the bank or shore.