The rupee again weakened sharply against the dollar, the domestic stock markets gained ground, while Chinese stocks tumbled. At the foreign exchange market, the rupee slumped 19 paise, to an over two-year low of 66.76 against the dollar. The rupee slipped on month-end dollar demand from banks and importers, and continued foreign fund outflows. But at the stock markets, the Sensex at the Bombay Stock Exchange climbed a good 170 points, to 26,128. The Nifty at the National Stock Exchange rose 59 points, to 7,943. However, the Chinese market plummeted 5.5 percent, hit by the regulator's crackdown on leveraged trading, and as profits earned by big Chinese industrial companies fell for the fifth straight month in October. Stock markets in Japan, China, Hong Kong and South Korea lost between 0.1 percent and 0.9 percent.