law: Indian Ports Act, 1908
  38. Receipts for port-charges 
  The person to whom any dues, fees or other charges authorized to
  
  be taken by or under this Act are paid shall grant to the person paying the
  
  same a proper voucher in writing under his hand, describing the name of his
  
  office, the port or place at which the dues, fees or other charges are paid,
  
  and the name, tonnage and other proper description of the vessel in respect of
  
  which the payment is made.