The Sensex at the Bombay Stock Exchange rose 74 points, or 0.4 per cent, to 19,319 in early trade, today, on fresh buying by investors, ahead of the Reserve Bank's mid-quarter monetary policy review. Later, after the RBI left key policy rates and the Cash Reserve Ratio unchanged, the Sensex dipped briefly, but then rebounded strongly, and stood 91 points, or 0.5 per cent in positive territory, at 19,335, in afternoon deals, a short while ago.Stock markets in Japan, China, Taiwan, Singapore and South Korea had gained between 0.2 percent and 1 percent, today, on signs of progress on the US fiscal cliff. The US Dow Jones Industrial Average had ended 0.8 per cent higher, yesterday.