The Sensex is now down 41 points at 13,655.Satyam has tumbled 3.6% to Rs 462. TCS has shed 2.5% to Rs 1,248. Infosys and Wipro have slipped around 2% each to Rs 2,082 and Rs 575, respectively.ACC and Bajaj Auto have advanced over 2% each to Rs 803 and Rs 2,535, respectively. Gujarat Ambuja has added 1.8% to Rs 114.Reliance Energy and Tata Steel are up over 1% each at Rs 510 and Rs 539, respectively.Out of 2,429 stocks traded so far, 1,321 have declined, 1,036 have advanced and 72 are unchanged.