Indian markets reversed course, slipping into negative territory, weighed down by auto and energy stocks, ending a two-day winning streak. The Sensex fell 0.18% to 79,962.71, and the Nifty fell 0.16% to 24,182.50, amid a lack of fresh positive triggers. Indian markets reversed course, slipping into negative territory, weighed down by auto and energy stocks, ending a two-day winning streak.