The Sensex is now down 84 points at 18,577.The NSE Nifty is down 13 points at 5,450.Infosys has plunged 2.7% to Rs 1,598, and Satyam has shed 2.3% at Rs 427. Wipro and TCS have slipped 1.7% each to Rs 456 and Rs 960, respectively.Hindustan Unilever (HUL) has tumbled 2.7% to Rs 206. Tata Motors and Tata Steel have dropped around 2.5% each to Rs 750 and Rs 783, respectively.Bajaj Auto and Mahindra & Mahindra have declined 1.7% each to Rs 2,418 and Rs 685, respectively.HDFC Bank has dropped 1.5% to Rs 1,526, and Grasim has shed 1.3% at Rs 2,990.Reliance Communications, SBI and ITC are down over 1% each at Rs 677, Rs 2,248 and Rs 203, respectively.NTPC, Ranbaxy and ACC have surged around 2% each to Rs 219, Rs 381 and Rs 782, respectively.Bharti Airtel and HDFC are up over 1% each at Rs 935 and Rs 3,051, respectively.