The Sensex is now up 317 points at 15,250.Infosys and Satyam have zoomed 5.3% each to Rs 1,980 and Rs 488, respectively. TCS and Wipro have soared around 5% each to Rs 1,161 and Rs 483, respectively.NTPC and HDFC Bank have rallied over 3% each to Rs 172 and Rs 1,177, respectively.Reliance Communications, ACC and Hindalco have gained around 2.5% each at Rs 546, Rs 1,010 and Rs 161, respectively.HDFC, Reliance Energy, SBI, Ranbaxy, Reliance and Ambuja Cements have surged around 2% each to Rs 2,016, Rs 780, Rs 1,715, Rs 376, Rs 1,840 and Rs 130, respectively.ONGC, ICICI Bank, Grasim, Hindustan Unilever and Mahindra & Mahindra are up around 1.5% each at Rs 881, Rs 883, Rs 2,963, Rs 203 and Rs 688, respectively. Out of 2,544 stocks traded so far, 1,970 have advanced, 517 have declined and 57 are unchanged.