BSE benchmark Sensex fell over 57 points in early trade today .The 30-share barometer, which had gained nearly 620points in the last four sessions, lost 57.30 points, or 0.33per cent, to 17,200. . Stocks of auto, metal and capitalgoods sectors led the fall.Similarly, the wide-based National Stock Exchange indexNifty declined by 18.70 points, or 0.36 per cent, to 5,211 .