The BSE benchmark Sensex today gained 34 points during noon. The 30-share barometer which opened 28 points up in early trade, kept it upward trend and gained 34 points to trade at 19,973.Similarly, the wide-based National Stock Exchange index Nifty moved up by nearly 13 points to 6,062.In the Asian region, Japan's Nikkei was sharply up by 2.75 per cent, while Hong Kong's Hang Seng rose by 0.26 per cent in early trade. The US Dow Jones Industrial Average ended 0.15 per cent lower yesterday.