At the stock markets, after a positive opening, the Sensex at the Bombay Stock Exchange gained further ground, and had surged 260 points, or 0.9 percent, to 29,626 a short while ago. The Nifty at the National Stock Exchange had jumped 86 points, to 9,206. And at the forex market, the rupee had appreciated 14 paise, to 64.47 against the dollar in afternoon deals.