At the stock markets, the Sensex at the Bombay Stock Exchange surged 134 points to trade at a fresh all-time high of 31,850, a short while ago.The Nifty at the National Stock Exchange shot up by 52 points to a new peak of 9,823.At the foreign exchange market, the rupee strengthened by 7 paise to 64 rupees 46 paise against the dollar.