After tumbling to an intra-day low of 11,345, the Sensex is now down 117 points at 11,718.The index has now recovered and is down 160 points at 11,675.Cipla has slumped 4.8% to Rs 248. HDFC Bank has dropped 3.8% to Rs 792.Hindalco and Wipro has declined 3% each to Rs 210 and Rs 528, respectively.HDFC, BHEL, Grasim, Tata Motors, Satyam and Ranbaxy are the other prominent losers.ACC is the sole gainer among the Sensex stocks.