Paring its early losses, the BSE Sensex rose by 189 points in late morning trade on fresh buying in bluechips such as Sun Pharmaceutical, Reliance and ICICI Bank.
Buying was mainly seen in healthcare, consumer durables, realty, oil and gas and power segment which lifted the market.
The 30-share Sensex had lost 110.29 points to 27,721.25 points in early trade.
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The 50-share Nifty crossed 8,500 level by rising 52.05 points to 8,518.60.
Major gainers were, Sunpharma by 3.19 pct, Cipla by 2.09 pct, Lupin by 1.84 pct, ICICI Bank by 1.05 pct, Reliance by 1.02 pct and Wipro 0.82 pct.
However, major losers were SBIN by 1.44 pct, BhartiAirtel by 1.35 pct, Hindalco by 1.29 pct and Bhel by 0.86 pct.
Meanwhile, foreign portfolio investors (FPIs) sold shares worth a net Rs 255.42 crore yesterday.
In overseas markets, Asian stocks were trading lower in early trade. Key indices in Japan, China, Hong Kong, Singapore, Taiwan and South Korea were down up to 3.04 per cent.