The 30-share barometer sensex Bombay Stock Exchange was trading at 19,711.40 up by 130 points a short while ago.Earlier in the day, it opened at 19724 gaining 144 points on sustained buying by funds amid a firming Asian trend. With all the sectoral indices, led by realty and metal, the benchmark sensex was trading in positive zone with gains of up to 1.25 percent.The wide-based National Stock Exchange index Nifty was trading at 5994 up by about 44 points a short while ago.