The Sensex at the Bombay Stock Exchange fell 148 points, or 0.9 per cent, to 16,164 in early trade, today, on continued selling by foreign funds, as the rupee tumbled to a new all-time low, and as global markets lost ground. Later, the Sensex remained weak, and stood 159 points, or 1 percent in the red, at 16,153 in afternoon deals, a short while ago.Global markets also fell, with stock indices in Japan, China, Indonesia, Singapore, Hong Kong, and South Korea down by between 0.1 percent and 2.2 percent, today, as fresh worries about Spain and Italy triggered fears of a deteriorating situation in Europe. Over in the US, the Dow Jones Industrial Average had slumped 1.3 per cent in yesterday's trade.