The Sensex opened with a positive gap of 20 points at 12,757. The index touched a high of 12,766 and the slipped into the negative zone. The index is now down 31 points at 12,706.ITC, Satyam and TCS have slipped nearly 1% each to Rs 187, Rs 437 and Rs 1,083, respectively.Infosys is the other prominent loser.
