Mumbai, June 12 (Reporter) The Rupee on Wednesday gained 4 paise to 83.54 against USD on selling of US Dollar by bankers and exporters dealers at the foreign exchange said. The local unit that rose marginally by 2 paise at 83.55 in the opening trade later finished at 83.54, gaining 4 paise as compared to its previous close. The domestic unit advanced due to a weak dollar against other world currencies amid a rebounding equity market. The rupee recorded intraday highs and lows at 83.51 and 83.57, respectively, the dealer added...////...