Duty free shop operations at Visakhapatnam Port: bonded warehousing, escorted transfers, restricted foreign currency sales and audit controls. Operation of the Duty Free Shop requires a Private Bonded Warehouse licence and a registered General Bond; all imported non-duty-paid goods must be received, transferred and warehoused only under Customs supervision with prescribed Into-Bond Bills of Entry or transfer bonds, endorsed duplicate/triplicate documentation, space certification, escort of goods, and detailed bond-register and stock-card entries. Removals to the DFS require quadruplicate transfer applications and Bond Officer escort; sales are limited to eligible international passengers and crew for payment in freely convertible foreign currency, supported by triplicate sale vouchers counter signed by the Bond Officer. Monthly statements, internal audit reconciliation, recovery of differential duty for unaccounted goods, and audit clearance for bond closure are mandated.