The Sensex opened with a positive gap of 52 points at 14,130, and soon rallied to a high of 14,189.The index has now pared gains, and is now up 55 points at 14,133.ACC and Grasim have surged 2.3% each to Rs 873 and Rs 2,550, respectively. Gujarat Ambuja has gained 2% to Rs 124.HLL has moved up 1.5% to Rs 199. Tata Steel, Reliance Energy, Bajaj Auto, Reliance Communications, Hindalco and Cipla are up over 1% each.Satyam has slipped 1% to Rs 474.