Rising for the fourth straight session, the rupee appreciated 12 paise to close at 86.44 (provisional) against the US dollar on Wednesday, supported by a positive trend in domestic equity markets and lower global crude oil prices.

However, a strengthening American currency against major currencies overseas ahead of the US Federal Reserve’s interest rate decision capped the sharp gain in the local unit, forex traders said.

At the interbank foreign exchange, the rupee opened at 86.60 and touched the intraday low of 86.68 against the greenback.

The unit also hit the day’s peak of 86.43 before ending the session at 86.44 (provisional), up 12 paise against its previous close.

The domestic currency settled 25 paise higher at 86.56 against the US dollar on Tuesday.

Anuj Choudhary, Research Analyst at Mirae Asset Sharekhan, said the rupee was supported by strong domestic equities, overnight decline in crude oil prices and FII inflows.

Choudhary further said the rupee is expected to trade with a positive bias on positive domestic markets and fresh FII inflows.

“Extended fall in crude oil prices and weakness in the greenback may also support the rupee. Investors may remain cautious ahead of the FOMC meeting. Fed is likely to leave the interest rates unchanged. USD-INR spot price is expected to trade in a range of `86.20 to `86.80,” he added.

Meanwhile, the US dollar index, which gauges the greenback’s strength against a basket of six currencies, was trading 0.36 per cent higher at 103.26.

Brent crude, the global oil benchmark, was trading 0.77 per cent lower at USD 70.02 per barrel in futures trade.

In the domestic equity market, the BSE Sensex rose 147.79 points, or 0.20 per cent, to settle at 75,449.05, while the Nifty advanced 73.30 points, or 0.32 per cent, to close at 22,907.60 points.

Foreign institutional investors (FIIs) turned net buyers and purchased equities worth `694.57 Crore on a net basis on Tuesday, according to exchange data.