The Sensex at the Bombay Stock Exchange fell 226 points, or 1.2 per cent, to to plunge below the 19,000 mark, at 18,816 in early trade, this morning, on all-round selling by investors, amid weak regional bourses. Later, the Sensex recovered some lost ground, and stood 148 points, or 0.8 percent in the red, at 18,894 in afternoon trade, a short while ago. The Sensex had declined nearly 400 points in the previous two trading sessions.Stock markets in Japan, China, Hong Kong, Indonesia, Singapore, Taiwan and South Korea had slipped between 0.9 percent and 5.8 percent, today, after the World Bank cut its global growth forecast, and amid concern that central banks may pare monetary stimulus. The US Dow Jones Industrial Average had ended 0.5 per cent lower in yesterday's trade.