Stock market bloodbath, Sensex crashes over 1,900 points, Nifty tanks 568 points

All 30 Sensex constituents ended in the red. ONGC was the top loser, shedding around 6.50 per cent, followed by M&M, Bajaj Finserv, Axis Bank, Kotak Bank, PowerGrid, HDFC Bajaj Finance and ICICI Bank.  The rupee dived 104 paise to settle at 73.47 (provisional) against the US dollar.