The Sensex has tumbled into the negative zone. The index from a new high of 12,323, has plunged into the red to a low of 12,134. The index is now down 68 points at 12,150.ITC is up 1.6% at Rs 211. Hero Honda and HDFC Bank have gained 1.4% each at Rs 842 and Rs 862, respectively.ONGC and Satyam are up over 1% each at Rs 1,337 and Rs 760, respectively.Hindalco has dropped 3% to Rs 229, and Tata Steel is down 1% at Rs 664.Dr.Reddy's slipped 2% to Rs 1,647. Ranbaxy is down 1% at Rs 517.Gujarat Ambuja, Grasim and ACC are also trading with notable loses.Out of 1,996 stocks traded so far, 1,075 have advanced, 866 have declined and 55 are unchanged.
