Stock market today: The BSE Sensex closed 244.98 points, or 0.29 per cent, lower at 83,382.71. The index had fallen as much as 442.49 points, or 0.52 per cent, to 83,185.20 during intraday trade. The NSE Nifty also ended in the red, declining 66.70 points, or 0.26 per cent, to 25,665.60.