The Sensex at the Bombay Stock Exchange was trading 254 points down at 20,381, a shortwhile ago. It fell by nearly 162 points in early trade due to sustained selling by funds amid a mixed trend in other Asian markets. Stocks of banking, realty, capital goods, FMCG and oil sectors were major losers, pulling down the Sensex.Similarly, the wide-based National Stock Exchange Nifty declined by 74 points, to 6,047.