The Sensex is now down 164 points at 14,885.
Sterlite has slumped 4.1% to Rs 610, and ONGC has plunged 3.8% to Rs 1060. DLF is down 2.9% to Rs 515.
Reliance Infrastructure and Reliance Industries have tumbled over 2.5% each to Rs 1,014 and Rs 2,213, respectively.
HDFC has slipped 2.3% to Rs 2,388.
ICICI Bank has gained 0.9% at Rs 720. Grasimis up 0.7% at Rs 2,016. Infosys and Ranbaxy have gained below half per cent.