Anti-dumping duty on Vitamin imports imposed, with retrospective application and prescribed calculation and exchange rate rules. Imposition of an anti-dumping duty on Vitamin AB2D3K imports from the European Union, Thailand and Singapore, applied per kilogramme and set by exporter- and territory-specific entries; duty equals the difference between the prescribed US$ amount and the assessable landed value, payable in Indian currency, with retrospective effect from the provisional duty date and conversion at the notified rate of exchange determined by the bill of entry date.