The Sensex is now up 449 points at 13,765.
HDFC has zoomed 7.6% to Rs 2,294. Satyam has soared over 6% to Rs 356.
DLF and Infosys have surged over 5% each to Rs 417 and Rs 1,602, respectively.
HDFC Bank and Bharti Airtel have rallied 4.7% each to Rs 1,279 and Rs 796, respectively.
TCS and Wipro have advanced over 3% each to Rs 751 and Rs 413, respectively.
Reliance Infrastructure, ONGC and Reliance Communicaitons have gained around 3.5% each at Rs 879, Rs 1,034 and Rs 368, respectively.
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ICICI Bank, BHEL and Ranbaxy have added 3.3% each to Rs 595, Rs 1,662 and Rs 352, respectively.
Grasim is up 3% at Rs 1,938.
Out of 2,361 stocks traded so far, 1,689 have advanced, 610 have declined and 62 are unchanged.