The Sensex tumbled to a low of 10,784 - down 151 points from the high. The index has now recovered some of its losses and is now down 74 points at 10,831.Dr.Reddy's is up 5.5% at Rs 1,433.HLL has moved up nearly 2% to Rs 256.Reliance Energy has dropped 3.7% to Rs 609.Hindalco, Larsen & Toubro and Maruti have slipped over 3% each to Rs 157, Rs 2,390 and Rs 845, respectively.Hero Honda has dropped 2.5% to Rs 891.SBI, Reliance and ACC have declined over 2% each to Rs 946, Rs 763 and Rs 742, respectively.