Rupee ends at two-week low against the US dollar

- The dollar index, which gauges the greenback's strength against a basket of six currencies, traded 0.79% higher at 90.725. The Sensex slumped 1,406.73 points or 3% to close at 45,553.96 while the Nifty ended 432.15 points or 3.1% lower at 13,328.40