The BSE Sensex today fell for the second consecutive day by losing nearly 162 points to 20,473 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 and as sectors were major losers, pulling down the Sensex.Similarly, the wide-based National Stock Exchange index, Nifty, declined by 53.10 points, or 0.87 per cent, to6,069.80.