Posting its third straight day of losses, the Sensex at the Bombay Stock Exchange fell 130 points, or 0.7 percent, to 17,463, today, as investors continued to fret about interest rates and corporate earnings, amid subdued global markets. The Nifty at the National Stock Exchange shed 28 points, or 0.5 percent, to 5,226.Stock markets in Japan, Hong Kong, South Korea and Singapore lost between 0.1 percent and 2 percent, after cautious comments about US economic recovery by the US central bank.