The BSE benchmark Sensex rebounded over 260 points in early trade today on fresh buying activity driven by encouraging corporate earnings and a firming trend in the Asian region.The 30-share index, which had lost 1,044.96 points in the past seven sessions, recovered by 260.18 points, to 20,454 points.The wide-based index of the National Stock Exchange, NIFTY, moved up by 76.70 points, to 6,066.