The Bombay Stock Exchange benchmark Sensex today surged by over 372 points on brisk buying. The Sensex, which had plunged to two-month low in the previous week, bounced back and closed at 19,957 points , its biggest surge since November 4, backed by Reliance Industries, Infosys Technologies and leading financial stocks.The broad-based National Stock Exchange index Nifty also rose by 119 points to 6,010 as investors viewed the recent correction in the markets as a good entry point for picking fundamentally strong shares.