The NSE Nifty is up 120 points at 4,109.
Reliance Infrastructure has zoomed nearly 9% to Rs 821, and Jaiprakash (JP) Associates has soared 8% to Rs 170.
ICICI Bank, ITC and Reliance Communications have surged around 5% each to Rs 625, Rs 180 and Rs 436, respectively.
BHEL, DLF, Bharti Airtel and Tata Motors have rallied over 4.5% each to Rs 1,568, Rs 450, Rs 745 and Rs 394, respectively.
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TCS has gained 4.3% at Rs 862. Larsen & Toubro, Grasim and HDFC have added over 3.5% each to Rs 2,488, Rs 1,730 and Rs 2,080, respectively.
HDFC Bank, Ambuja Cements and Mahindra & Mahindra are up 3.3% each at Rs 1,035, Rs 77 and Rs 533, respectively.
Out of 2,536 stocks traded, 1,974 have advanced, 508 have declined and 54 are unchanged.