The Sensex dipped below the 15,000-mark to 14,995, and is now down 734 points at 15,026.The NSE Nifty is down 206 points at 4,539.All Sensex stocks are down more than 2%.Jaiprakash (JP) Associates has slumped 9% to Rs 215. HDFC has plunged 8.7% to Rs 2,285.HDFC Bank has tumbled 8% to Rs 1,212, and ICICI Bank has shed 7.7% at Rs 811.Hindalco, DLF, Reliance Communications and Tata Steel have dropped around 6.5% each to Rs 169, Rs 611, Rs 485 and Rs 670, respectively.Bharti Airtel has slipped 5.5% to Rs 711. Ranbaxy and BHEL have declined 5% each to Rs 441 and Rs 1,786, respectively.