The Sensex ended (provisional) at 14,783, up 533 points.
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The Sensex pared some gains but has rebounded to a high of 484 points to 14,734.
Mahindra & Mahindra has soared nearly 7% to Rs 769.
Hero Honda, Reliance Infrastructure and Jaiprakash Associates have rallied 6.5% each to Rs 1,639, Rs 1,126 and Rs 210, respectively.
Tata Motors, ICICI Bank and Bharti Airtel have surged 5.5% each to Rs 312, Rs 734 and Rs 827, respectively.
HDFC, Tata Power, ITC, DLF, Infosys,Wipro, Larsen & Toubro and HDFC Bank are the other gainers.
Sterlite, NTPC and Reliance are marginally down.
The market breadth is extremely positive - out of 2,709shares traded, 1,764 have advanced and 860 have declined.