The BSE benchmark Sensex rose by over 107 points in opening trade today.The 30-share Sensex, which has lost over 165 points in the past two sessions, recovered by 107.56 points, or 0.68 per cent, to 15,944.03 in opening trade.The wide-based National Stock Exchange Nifty index also moved up by 34.45 points, or 0.73 per cent, to 4,780.80.