The Sensex is now up 178 points at 12,875.Reliance Communications, Satyam and Tata Motors have surged over 2.5% each to Rs 412, Rs 445 and Rs 745, respectively.Dr.Reddy's, ICICI Bank, HDFC Bank and Larsen & Toubro have advanced over 2% each to Rs 635, Rs 870, Rs 955 and Rs 1,455, respectively.Reliance has gained almost 2% at Rs 1,324. Cipla and Bharti Airtel are up 1.8% each at Rs 226 and Rs 731, respectively.Gujarat Ambuja has crumbled nearly 3% to Rs 111, and ACC has plunged 2% to Rs 838.