Equity benchmark Sensex rallied 478 points on Monday after gains in index majors HDFC, Infosys and Kotak Bank despite a negative trend in the global markets. After a volatile session, the 30-share index ended 477.99 points or 0.80 per cent higher at 60,545.61. The broad based Nifty surged 151.75 points or 0.85 per cent to 18,068.55 as 40 of its constituents ended with gains.