Mumbai, Jul 18 (PTI) Benchmark Sensex tanked 501 points while Nifty closed below the 25,000 mark on Friday due to selling in banking shares after muted quarterly earnings and foreign fund outflows. Falling for the second straight day, the 30-share BSE Sensex declined by 501.51 points or 0.61 per cent to settle at 81,757.73. During […]