The Sensex is now down 270 points at 9687.Ranbaxy has tumbled 6.8% to Rs 362. Hindalco has dropped 6.6% to Rs 150. Larsen & Toubro has slipped over 6% to Rs 1,994.Satyam, NTPC and SBI have shed over 5.5% each to Rs 600, Rs 100 and Rs 795, respectively.Bharti Airtel is up 2% at Rs 353.Out of 2,421 stocks traded so far, 2,264 have declined, 138 have advanced and 19 are unchanged.