The Sensex at the Bombay Stock Exchange dropped 44 points, or 0.3 percent, to 17,199, on mild selling by funds, amid weak regional markets, Wednesday . The Nifty at the National Stock Exchange fell 17 points, or 0.3 percent, to 5,227.Stock markets in Japan, Hong Kong, and Singapore declined between 0.8 percent and 1.2 percent.