The Sensex is now up 171 points at 12,626.BHEL has soared nearly 5% to Rs 2,256. Wipro has rallied 3.5% to Rs 536, and Hero Honda has surged 3% to Rs 659. Infosys, NTPC, TCS and Satyam have advanced around 2% each to Rs 1,966, Rs 151, Rs 1,212 and Rs 455, respectively.Reliance, HLL and Grasim are up 1.7% each at Rs 1,337, Rs 199 and Rs 2,090, respectively.Out of 2,333 stocks traded so far, 1,278 have advanced, 974 have declined and 81 are unchanged.