The Indian rupee today 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 $. The rupee ended 48 paise lower at 46.68/69 against the $ in the previous session.
Forex dealers said fears of more capital outflows by foreign funds as market is expected to open lower in tandem with other Asian markets that were trading in negative zone and dollar's gains versus other Asian units mainly put pressure on the Indian rupee.