The Indian rupee today tumbled by four paise to 47.82 against the US $ on expectations of capital outflows by foreign funds as domestic bourses may open weak in tandem with other Asian markets.
At the Interbank Foreign Exchange (Forex) market, the local unit, which gained 10 paise to 47.78/80 a $ yesterday, moved down marginally by four paise in early trade.
Forex dealers said the benchmark Sensex is likely to open on a weak note in line with other Asian markets, which are down up to one per cent, leading to capital outflows by foreign funds.