Mumbai, May 29 (Reporter) The rupee on Wednesday tumbled down 10 paise at 83.27 against USD in the opening session on brisk demand for the US dollar by bankers and importers, dealers at the Foreign Exchange said. The local unit remained under pressure because of the strong dollar against other world currencies amid a negative opening in the stock market, the dealer informed. The rupee recorded intraday highs and lows at 83.25 and 83.30, respectively, the dealer added...////...