The rupee turned flat at 82.88 against the US dollar in early trade on Tuesday amid subdued equity market sentiment and withdrawal of foreign funds. According to forex analysts, support from a weak American currency was negated by higher level of crude oil prices even as investors adopted cautious move awaiting cues from domestic as well as global macroeconomic data. At the interbank foreign exchange, the local currency opened at 82.87 and then slipped further to trade at 82.88 against the greenback, the previous day's closing level. On Monday, the rupee settled 3 paise higher at 82.88 against the US dollar. According to Gaurang Somaiya, forex and bullion analyst, Motilal Oswal Financial services, the rupee traded almost flat and stuck in a narrow range and most market participants remained cautious ahead of a week filled with key economic data releases that will provide further clues on global interest rate outlook. "On the domestic front, Q4 GDP number will be released this week