The Sensex is now down 602 points at 18,061.The NSE Nifty is down 188 points at 5,295.All index stocks are still in negative zone with losses in excess of 1% each.Wipro has slumped 6% to Rs 427, and Infosys has tumbled 5.7% to Rs 1,519. Satyam has crashed 5.4% to Rs 415, and TCS has shed 4.4% at Rs 908.Bharti Airtel has plunged nearly 5% to Rs 890. Hindalco has dropped 4.4% to Rs 174.Ranbaxy has slipped over 4% to Rs 371. Maruti, Tata Motors and DLF have declined 3.7% each to Rs 840, Rs 728 and Rs 858, respectively.ONGC, Tata Steel, Reliance and Reliance Energy are down over 3% each at Rs 1,040, Rs 792, Rs 2,535 and Rs 1,964, respectively.Out of 2,604 stocks traded so far, 1,594 have declined, 968 have advanced and 42 are unchanged.