In this Act, unless the context otherwise requires,-

(30A) "prevailing market price" means such wholesale price of any goods in force in the open market as published by the Bureau of Applied Economics and Statistics of the State or any other authorised agency or in the newspaper and in cases where no such wholesale price as published is available, the price at which such goods is sold by the West Bengal Essential Commodities Supply Corporation Limited or any other similar agency on the date of sale of such goods;'