In a volatile session, the 30-share BSE Sensex fell 1,048.16 points, or 1.25 per cent, to close at 82,626.76. During the day, the benchmark tanked 1,140.37 points, or 1.36 per cent, to hit an intraday low of 82,534.55.The 50-share NSE Nifty declined 336.10 points, or 1.30 per cent, to settle at 25,471.10. In intraday trade, the index slumped 362.9 points, or 1.4 per cent, to touch a low of 25,444.30.Here are top gainers and losers of the day:Nifty50 top gainersBajaj Finance (2.57%)Eicher Motors (1.54%)SBI L ...