The Sensex at the Bombay Stock Exchange surged 211 points, to 20,461 in early trade, today, on fresh buying by funds, amid firm global cues. But the Sensex later gave up most of its gains, and stood a modest 26 points, or 0.1 percent in the green, at 20,276, a short while ago. Other Asian markets in China, Hong Kong, Indonesia and Singapore rose between 0.1 percent and 2 percent, on expectations that the US central bank will embark on a second round of quantitative easing to support the US economy.