The Sensex moved up 75 points in early session today as support came in from blue-chip stocks amid a mixed movement in Asia. The 30-share index was trading higher by 74 points at 31,285. The NSE Nifty too edged up 7 points to 9,621.Globally, Hong Kong's Hang Seng rose 0.33 per cent while Japan's Nikkei was down 0.52 per cent. China's Shanghai Composite rose 0.31 per cent.