The Sensex is now down 224 points at 9774.There is not a single gainer among the index stocks.HDFC has dropped 4% to Rs 1,008. HDFC Bank has plunged 3.7% to Rs 709.Tata Steel, Bharti Airtel and Reliance Communication Ventures have tumbled over 3.5% each to Rs 460, Rs 349 and Rs 221, respectively.Bajaj Auto and HLL are down over 3% each at Rs 2,635 and Rs 215, respectively.