The Sensex is now down 592 points at 19,438.NTPC has slumped 6.7% to Rs 230, and Hindalco has plunged 6.4% to Rs 199.ONGC and HDFC have tumbled 5.5% each to Rs 1,170 and Rs 2,890, respectively.DLF, Tata Steel and Bharti Airtel have dropped around 5% each to Rs 970, Rs 835 and Rs 906, respectively.Reliance Communications, Tata Motors and Reliance Energy have slipped around 4% each to Rs 728, Rs 715 and Rs 1,835, respectively.Out of 2,930 stocks traded so far, 1,556 have advanced, 1,350 have declined and 24 are unchanged.
