The BSE benchmark Sensex gained over 65 points in early trade today. The 30-share barometer, which had lost 9.68 points in yesterday's volatile trade, recovered by 65.74 points, or 0.35 per cent, to 18,395.Similarly, the wide-based National Stock Exchange index Nifty moved up by 2.45 points, or 0.04 per cent, to 5,574.00.