The rupee stayed firm for the fourth straight session and gained 4 paise to 82.92 against the US dollar in early trade on Thursday, tracking a weak American currency against major overseas rivals. Forex trader said, however, the Indian currency was under pressure due to subdued equity market sentiment and elevated level of crude oil prices. At the interbank foreign exchange, the domestic currency opened at 82.94 and gained further to 82.92 against the greenback in initial deals, registering a gain of 4 paise from its previous close. The rupee settled 1 paisa higher at 82.96 against the US dollar on Wednesday, after witnessing a cumulative gain of 8 paise in the preceding two sessions. Meanwhile, the dollar index, which gauges the greenback's strength against a basket of six currencies, was trading 0.04 per cent lower at 103.87. Analysts attributed the retreating dollar index to the US Federal Reserve's minutes that reflected policy makers' cautious approach, ebbing the possibility