The Sensex is now down 137 points at 9,450. The index had opened 153 points lower at 9,434, thereafter, rebounded and touched a high of 9,630 - up 278 points from the early morning low.
The index, however, could not hold gains and slipped back into the negative zone to a low of 9,251 - down 379 points from the day's high.
Satyam has recovered partially from its day's low of Rs 11.50, but is still down a whopping 45% at Rs 22.
Sterlite and DLF have plunged nearly 11% each to Rs 269 and Rs 210, respectively.
Reliance Communications has tumbled nearly 10% to Rs 186, and Reliance Infrastructure has slumped almost 9% to Rs 510.
Larsen & Toubro and Ranbaxy have shed 8% each at Rs 713 and Rs 217, respectively.
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Tata Steel has dropped 7.5% to Rs 216, and Tata Power has declined 6.3% to Rs 745.
TCS has soared 6.5% to Rs 536. Hindustan Unilever has surged 4.3% to Rs 262.
Infosys and Maruti have rallied 3.3% each to Rs 1,227 and Rs 584, respectively.
Wipro and Mahindra & Mahindra have gained 2.8% each at Rs 250 and Rs 309, respectively.
The market breadth is extremely negative - out of 2,436 stocks traded so far, 1,880 have declined, 492 have advanced and the rest are unchanged.