The Sensex touched a high of 13,756, and then slipped into red to a low of 13,640. The index is now down 22 points at 13,673.Technology stocks are witnessing profit taking. Satyam has plunged 3.6% to Rs 462, and TCS has dropped 2.7% to Rs 1,246. Wipro has slipped over 2% to Rs 574, and Infosys has shed 1.7% to Rs 2,091.Grasim and ONGC are down 1% each at Rs 2,352 and Rs 892, respectively.HDFC Bank has advanced over 2% to Rs 992. Gujarat Ambuja has moved up 1.5% to Rs 114.Larsen & Toubro and Bharti Airtel has gained 1.4% each at Rs 1,683 and Rs 813, respectively.Reliance Energy, Hero Honda and Ranbaxy are up 1% each at Rs 510, Rs 655 and Rs 342, respectively.