The Sensex at the Bombay Stock Exchange surged 199 points, or 1.2 percent, to 16,839 today after good quarterly results by some banks, and amid rising Asian markets, today. The Nifty at the National Stock Exchange rose 57 points, or 1.1 percent, to 5,100.Stock markets in Japan, China, Hong Kong and South Korea gained between 0.1 percent and 2.6 percent, on hopes that central banks from Europe and Japan will take steps to contain the eurozone debt crisis.