The Sensex is now up 55 points at 14,917.Ambuja Cements and Reliance Communications have rallied 2% each to Rs 132 and Rs 556, respectively.ACC and Satyam have surged 1.5% each to Rs 1,037 and Rs 471, respectively.Wipro and Larsen & Toubro have moved up 1.3% each to Rs 511 and Rs 2,362, respectively.Reliance Energy, Ranbaxy, Hindalco and HDFC Bank are up 1% each at Rs 598, Rs 364, Rs 156 and Rs 1,141, respectively.ICICI Bank has shed 2.5% to Rs 980. HDFC has slipped 1.5% to Rs 1,920, and Cipla is down 1% at Rs 214.Out of 2,431 stocks traded so far, 1,581 have advanced, 776 have declined and 74 are unchanged.