The BSE Sensex today regained the psychological 19,000 level, by rising over 151 points in early trade on widespread buying by funds and retailers amid a firming Asian trend. The 30-share barometer rose to 19,029, for the first time since February 28. The index had lost 41 points in the previous session.Similarly, the National Stock Exchange index Nifty moved up by 32 points, to 5,731.