The Bombay Stock Exchange benchmark Sensex surged over 350 points within a minute of direct tax sops, including income tax concessions, proposed by Finance Minister Pranab Mukherjee in the Budget 2010-11.The 30-share Sensex jumped and remained up in a range of 300 points crossing the 16,600 mark. Led by Reliance Industries, PSU bank State Bank of India and Hindalco, the barometer index saw an upswing as investor confidence was back that the government will not borrow much from the market. The NIFTY at the National Stock Exchange was also moved up 93 and was trading at 4952 points.