On Friday, BSE Sensex fell 1,687 points or 2.87 per cent to close at 57,107.15, NSE Nifty declined 509.80 points or 2.91 per cent to close at 17,026.45. Friday바카라™s performance implied that the benchmark indices have fallen in six sessions in the past eight days. This was also the worst single-day drop on the BSE in about seven months.