Mumbai: The rupee as it depreciated 15 paise to 64.39 against the US dollar in early session on Monday.
On Friday, the domestic currency had lost 3 paise to close at 64.24 against the US currency, cutting short its two-day rise.
Meanwhile, the benchmark BSE Sensex was trading lower by 155.91 points, or 0.49 per cent, at 31,106.15 in opening deals.