The Sensex at Bombay Stock Exchange remained subdued, and had declined 145 points, or 0.5 percent, to slip below the 32,000-mark, at 31,870, a short while ago. The Nifty at the National Stock Exchange had dropped 44 points, to 9,935.In Japan, China, Hong Kong and South Korea markets had lost between 0.2 percent and 1.3 percent.Rupee had weakened 15 paise, to 63.78 against the dollar in afternoon deals at the forex market.