Just a day before Karnataka polls result, key indices on Monday opened in green. The benchmark BSE Sensex was trading at 35,591.51 mark and was up by 57.25 points while Nifty was tradung beyond 10,800 mark. Market breadth, indicating the overall health of the market, turned positive. On the BSE, 770 stocks rallied, 661 stocks declined, while 55 stocks remained unchanged.