The Sensex has slipped back to lower levels and is now down 132 points at 9825.Ranbaxy has tumbled over 5% to Rs 368. ONGC has shed 4% to Rs 1,000.NTPC and SBI are down 3.5% each at Rs 102 and Rs 813, respectively.Out of 2,257 stocks traded so far, 2,035 have declined, 197 have advanced and 25 are unchanged.
