India's benchmark stock market index, Sensex gained nearly 380 points in the opening trade on Wednesday, led by software major Infosys following better-than-expected quarterly earnings.

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At 09:30 AM, the S&P BSE Sensex was higher by 276 points or 0.8 percent at 35,438 while the NSE Nifty gained 0.7 percent to 10,657.

Infosys jumped about 3 percent after the company's revenue growth in the September quarter was its highest in the past eight quarters.

Reliance Industries was up nearly 1 percent ahead of its second-quarter results on Wednesday.

Eicher Motors, Yes Bank, ICICI Bank, Infosys and IndusInd Bank were among the top five index gainers while Indiabulls Housing, NTPC and BPCL lost in trade.

On the macroeconomic front, the rupee opened at a two-week high at 73.41 against the US dollar while the oil prices continue to trade above $80 per barrel.

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