The Sensex is now down 138 points at 17,954.The NSE Nifty is down 48 points at 5,233.Bajaj Auto has tumbled 3.3% to Rs 2,300. Mahindra & Mahindra and Maruti have dropped 2.3% each to Rs 685 and Rs 838, respectively. Tata Motros has slipped 1.5% to Rs 705.ONGC has plunged over 2% to Rs 997. Satyam and Hindustan Unilever have shed 1.8% each at Rs 390 and Rs 204, respectively.ITC and Reliance Communications have declined around 1.5% each to Rs 198 and Rs 633, respectively.Reliance and ACC have dropped 1.3% each to Rs 2,541 and Rs 782, respectively.ICICI Bank, Reliance Energy and Larsen & Toubro are down around 1% each to Rs 1,206, Rs 2,085 and Rs 3,733, respectively.Tata Steel has moved up 2.3% to Rs 733, and BHEL has added 1.4% to Rs 2,081.Ambuja Cements, Bharti Airtel and DLF are up around 1% each at Rs 119, Rs 859 and Rs 892, respectively.