The domestic indices ended a choppy session with modest gains to extend their winning streak that has lasted for three days now. The market remained volatile and swung wildly like a pendulum throughout the day. During the day’s session, the Nifty regained the 5500 level but it could not hold on to that level and ended the day below 5500. At the finishing line, the Sensex closed at 18270, higher by 72 points, whereas the Nifty shut shop at 5481, higher by 25 points.The benchmark indices were well supported by the heavyweights like Reliance Industries, Oil & Natural Gas Corporation, State Bank of India, ICICI Bank and National Thermal Power Corporation all of which gained 2-3% each.