The Sensex and is now down 158 points at 11,664. The index had earlier touched a high of 11,878, before slipping to a low of 11,379.Gujarat Ambuja has soared 3% to Rs 104. ACC has spurted 1.5% to Rs 875.Dr.Reddy's has rallied over 2% to Rs 1,630. HLL has gained 1.3% at Rs 267.Tata Power has plunged 6.7% to Rs 531. Tata Steel has plunged 5% to Rs 556, and Hindalco has dropped 3.7% to Rs 202.Larsen & Toubro has shed 4.4% to Rs 2,590. Hero Honda is down nearly 4% at Rs 830.Out of 2,499 stocks traded so far, 2,066 have declined, 390 have advanced and 43 are unchanged.