The Sensex is now down 48 points at 13,129.Satyam has tumbled over 3% to Rs 447. Infosys and Wipro have slipped over 2% each to Rs 1,996 and Rs 550, respectively.SBI and Dr.Reddy's have shed 1.4% each to Rs 975 and Rs 720, respectively. Bajaj Auto, Cipla, ICICI Bank, TCS and Larsen & Toubro are down over 1% each to Rs 2,270, Rs 232, Rs 845, Rs 1,203 and Rs 1,581, respectively.HDFC, HLL, Tata Motors and ITC and rallied around 2.5% each to Rs 1,597, Rs 209, Rs 720 and Rs 159, respectively.Ranbaxy has surged 2% to Rs 358. HDFC Bank has advanced 1.5% to Rs 987, and Gujarat Ambuja has added 1% to Rs 110.Out of 2,549 stocks traded so far, 1,454 have advanced, 1,026 have declined and 69 are unchanged.