The Sensex at the Bombay Stock Exchange fell 159 points, or 1 per cent, to 15,723 in opening trade, this morning, on concerns over slowing domestic growth, a falling rupee, and amid weak Asian bourses. At one stage, in mid-morning trade, the Sensex had lost as much as 285 points. But later, data showing a sharp fall in food inflation led to the Sensex trimming its losses considerably, and stand a much more modest 72 points, or 0.5 per cent in the negative zone, at 15,809 in afternoon trade, a short while ago.Other Asian markets posted significant losses, with key stock indices in Japan, China, Hong Kong, Indonesia, Singapore, South Korea and Taiwan dropping between 1.5 percent and 2.2 percent, today. Stocks fell as the latest readings of manufacturing activity in China and Japan indicated weak conditions in Asia's two largest economies, and as growing funding stress in Italy stoked concerns about Europe's sovereign debt crisis.Over in the US, the US Dow Jones Industrial Average had lost 1.1 per cent, overnight.