New Delhi, May 5 -- Rupee appreciated against the US dollar on Monday, tracking strength in other Asian currencies. The currency was buoyed by foreign fund inflows into domestic markets and a sharp decline in global crude oil prices.

At the interbank foreign exchange market, the rupee opened at 84.45, touched an early low of 84.47, and strengthened to a high of 84.18 against the greenback, registering a gain of 39 paise over its previous close.

On Friday, the rupee had surged to a seven-month high of 83.77-briefly breaching the 84-per-dollar mark-before paring gains amid suspected dollar-buying intervention by the Reserve Bank of India (RBI).

Meanwhile, the US dollar index was trading just below the 100 mark at 99.69, weighed down by m...