The Sensex has slipped into red and is now down 66 points at 10,034.
Updated at 1255 hrs
DLF and Tata Motors have rallied over 5% each to Rs 324 and Rs 189, respectively.
Reliance Communications, ONGC and Jaiprakash Associates have surged 3.5% each to Rs 224, Rs 734 and Rs 92, respectively.
Reliance Infrastructure and Ranbaxy have gained 2.5% each at Rs 635 and Rs 223, respectively.
Satyam has moved up nearly 2% to Rs 166. Tata Steel, Larsen & Toubro, SBI and Grasim are the other prominent gainers.
HDFC and ICICI Bank have slipped over 2% each to Rs 1,487 and Rs 462, respectively.
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Hindustan Unilever is down 1% at Rs 263.
The market breadth is fairly positive - out of 2,278 stocks traded so far, 1,425 have advanced, 780 have declined and the rest are unchanged.