At the close Sensex ended 3,934.72 points or 13.15 per cent in the red at 25981.24, and the Nifty plunged 1,135.20 points or 12.98 per cent at 7610.25. Bank and auto stocks were the worst-hit. The Nifty Bank index was down over 15 per cent. Axis Bank, IndusInd Bank and Bajaj Finance are the top losers while HDFC Bank, Reliance Industries, ICICI Bank, HDFC and TCS are the most active stocks. The midCap index was trading with 6.9 per cent cut and SmallCap index was down 9.4 per cent.