The Bombay Stock Exchange benchmark Sensex fell by over 46 points in the opening trade today. However, in the afternoon trade it recovered some points and was trading flat at 19,980 a short while ago. Meanwhile, in other markets in Asia, Hong Kong's Hang Seng index was trading lower by 0.31 per cent, while Japan's Nikkei shed 0.14 per cent in early trade today. In the US, Dow Jones Industrial Average ended 0.17 per cent low at yesterday's close.