Volatile session ends on a winning streak; Infosys steal the show: After a volatile day of trade, the market ended on higher note. The Sensex ended higher by 183.6 points at 27458.3 and the Nifty was up 49.9 points at 8284.50. Infosys rallied 5 percent after reporting a good set of numbers. The market breadth indicating the overall health of the market was strong. In the foreign exchange market, the rupee edged higher against the dollar. Global cues are mixed today. While Asian markets like Hong Kong and Korea ended in the green, European markets are flat with a negative bias while Brent crude headed for seventh weekly loss as supply glut drags, down marginally to below USD 51 a barrel.