The Sensex was trading 47 points down at 17,859 points, a shortwhile ago. It fell by 76 points in the early trade today, extending its losing streak for the fifth straight day. The fall was due to sustained selling pressure as the rupee plunged to new record low of 65 against the dollar. The 30-share index had lost over 1,461 points in the previous four sessions.Similarly, Nifty was also trading 18 points down at 5,285 points .