The Sensex opened 33 points lower at 10,305, and has since drifted lower. The index is now down 198 points at 10,140.
Tata Motors has plunged 5% to Rs 181. Sterlite has shed 4.5% at Rs 282.
DLF, Jaiprakash Associates and HDFC have tumbled around 4% each to Rs 243, Rs 78 and Rs 1,820, respectively.
Reliance and Satyam have dropped around 3.5% each to Rs 1,387 and Rs 290, respectively. Reliance Communications has declined 3.3% to Rs 225.
ONGC has surged 3% to Rs 733.
