The Sensex today rose over 40 points in early trade on emergence of selective buying by funds, largely in line with a firming trend on the other Asian bourses.The 30-share index gained 40 points, or 0.19 per cent, to 20,905 with consumer durables, realty, metal and power sector stocks leading the recovery. The Sensex had shed 28.92 points in yesterday's volatile session.Similarly, the wide-based National Stock Exchange index Nifty moved up by 11.45 points, or 0.18 per cent, to 6,214.In the Asian region, Japan's Nikkei rose 0.48 per cent, while Hong Kong's Hang Seng index gained 0.60 per cent in early trade. The US Dow Jones Industrial Average ended 0.49 per cent higher in previous session.