The Sensex at the Bombay Stock Exchange fell 30 points, or 0.2 percent, to 16,256, on Wednesday. The Nifty at the National Stock Exchange lost 11 points, or 0.2 percent, to 4,859. Railway-related stocks slumped after the presentation of the Railway Budget.Stock markets in Japan, Singapore, Hong Kong, and South Korea fell between 0.5 percent and 1.5 percent.