The Sensex is now down 152 points at 13,842.
Ranbaxy has slumped 8.3% to Rs 318. DLF and Jaiprakash Associates have tumbled over 4.5% each to Rs 401 and Rs 124, respectively.
Satyam has plunged over 4% to Rs 338. Wipro and ICICI Bank have shed around 3.5% each at Rs 400 and Rs 613, respectively.
SBI has dropped nearly 3% to Rs 1,522. Bharti Airtel has slipped 2.6% to Rs 788.
HDFC, Tata Motors and Infosys have declined 2.3% each to Rs 2,272, Rs 406 and Rs 1,591, respectively.
Tata Steel, BHEL and TCS are also down around 2% each.
Sterlite has surged 2.5% to Rs 472. Reliance and Tata Power have moved up around 1.5% each to Rs 2,070 and Rs 1,036, respectively.
The market breadth is fairly negative - out of 2,428 stocks traded so far, 1,574 have declined, 783 have advanced and the rest are unchanged.