when the quality of water and packaging of the bottles available at the airport is no different than those sold in the open market how can the mrp be different this should be treated as unfair trade practice and the state consumer affairs department should take up the issue said basu mala banerjee president federation of consumer associations of west bengal said bottled water of a particular brand whether being sold from a paan shop or at the airport should be priced same places like star hotels or restaurants however can charge extra when the water is severed in a glass but if a store sells a bottle of water they cant charge a premium she argued consumer affairs minister has promised to take up the matter and take necessary action