The Sensex is now up 82 points at 15,670.The NSE Nifty is up 15 points at 4,725.HDFC has surged nearly 3% to Rs 2,375. Tata Steel and BHEL have rallied over 2% each to Rs 671 and Rs 1,750, respectively.Larsen & Toubro has moved up 1.8% to Rs 2,628. Infosys and Reliance Energy are up over 1% each at Rs 1,479 and Rs 1,165, respectively.Maruti has slipped 2% to Rs 729. Hindustan Unilever has dropped nearly 2% to Rs 243.Grasim, Satyam and ITC are down 1.3% each at Rs 2,525, Rs 424 and Rs 206, respectively.