Sensex at the Bombay Stock Exchange fell for the third straight day by losing 202 points to end at a one-week low of 19,362 on sustained profit selling, amid a weakening global trend. After losing 118 points in the last two sessions, the Sensex dropped further by 202 points to 19,362 led by banking and financial stocks.The Nifty at the National Stock Exchange also fell by 62 points to 5851.