Extending it losses for the fifth consecutive session, the Sensex at the Bombay Stock Exchange opened 140 points lower, at 19,311, on continued selling by foreign funds and retail investors, amid subdued Asian bourses. Later, after falling more than 180 points on disappointing industrial output data for February, the Sensex recovered partially, to stand 152 points, or 0.8 percent in negative territory, at 19,299, in afternoon deals, a short while ago. The benchmark index has already lost 250 points in the last four trading sessions. Other Asian markets in Japan, Hong Kong, South Korea, Singapore and Taiwan were down by between 0.2 percent and 0.6 percent, as investors continued to fret about high crude oil prices.