The Sensex is now down 307 points at 9,863.
Tata Steel and Tata Motors have slumped over 11% each to Rs 202 and Rs 217, respectively. Hindalco has tumbled over 9% to Rs 55.
HDFC has plunged over 8% to Rs 1,747. Maruti and Sterlite have shed around 7.5% each at Rs 600 and Rs 246, respectively.
Ranbaxy has dropped 6% to Rs 243. Bharti Airtel has slipped 5.5% to Rs 630.
Reliance Infrastructure has declined over 5% to Rs 449. ICICI Bank and Reliance are down around 4.5% each at Rs 378 and Rs 1,258, respectively.
BHEL has gained 2% at Rs 1,164. ITC is up 1% at Rs 172.
The market breadth is extremely negative - out of 2,335 stocks traded so far, 1,755 have declined, 522 have advanced and 58 are unchanged.