The BSE benchmark Sensex fell by over 101 points in early trade today as funds and retail investors booked profits amid a weakening trend on the other Asian bourses.The 30-share index, fell by over 101 points, or 0.58 per cent, to 17,516.70. Similarly, the wide-based National Stock Exchange index Nifty declined by 29.00 points, or 0.54 per cent, to 5,316.35. Meanwhile, in Asian region, Japan's Nikkei Index fell by 0.48 per cent, while Hong Kong's Hang Seng shed 0.13 per cent. The US Dow Jones Industrial Average ended 0.65 per cent lower in yesterday's trade.