The Sensex is now down 521 points at 12,534.
ICICI Bank and Tata Steel have slumped nearly 9% each to Rs 503 and Rs 400, respectively.
Sterlite has plunged 7.3% to Rs 398. Reliance has dropped over 6% to Rs 1,790.
Tata Power has shed 5.5% at Rs 894, and HDFC has dropped 5% to Rs 2,095.
Bharti Airtel has tumbled 4.5% to Rs 755. Infosys has slipped over 4% to Rs 1,394.
Larsen & Toubro and Reliance Infrastructure have shed 3% each at Rs 1,178 and Rs 758, respectively.
TCS, DLF and ONGC have declined over 2.5% each to Rs 653, Rs 336 and Rs 1,017, respectively.
Reliance Communications and Wipro are down 2.3% each at Rs 335 and Rs 341, respectively.
Ranbaxy has soared 6% to Rs 267. Mahindra & Mahindra has rallied 2% to Rs 517, and Hindustan Unilever has added 1% to Rs 257.
Out of 2,592 stocks traded so far, 1,844 have declined, 687 have advanced and 61 are unchanged.
