The Indian rupee on Friday depreciated marginally by 5 paise to 46.73 against the US dollar in opening trade largely on fears of fresh capital outflows by foreign funds as market may open weak in line with bearish trend in Asian equity markets.

Dollar's gains against other Asian currencies also put pressure on the rupee. At the Interbank Foreign Exchange (Forex) market, the domestic unit traded 5 paise down at 46.73 a dollar. The rupee ended 48 paise lower at 46.68/69 against the dollar in the previous session after the Sensex fell by 213.13 points.