The Sensex is now down 74 points at 19,904.Mahindra & Mahindra and Maruti have tumbled 4.5% each to Rs 760 and Rs 1,137, respectively.Reliance has dropped over 2% to Rs 2,767. ACC has slipped 1.6% to Rs 1,064.Wipro, ICICI Bank, ITC, Hindustan Unilever, TCS and Hindalco are down over 1% each.BHEL and Reliance Energy have surged nearly 3% each to Rs 2,690 and Rs 1,770, respectively.Larsen & Toubro has rallied 2% to Rs 4,357.