The BSE benchmark Sensex today lostover 79 points in early trade on increased selling by funds and retail investors even as industrial production grew 2.6 per cent in July and retail inflation eased. The 30-share index fell by 79.67 points, or 0.40 per cent, to 19,702.21 in early trade with banking, realty, oil and gas and consumer durable stocks leading the fall.The wide-based National Stock Exchange index Nifty moved down by 21 points, or 0.36 per cent, to 5,830.In the Asian region, Hong Kong's Hang Seng fell 0.59 per cent, while Japan's Nikkei was down 0.31 per cent in early trade. The US Dow Jones Industrial Average ended 0.17 per cent down in yesterday's trade.