The Bombay Stock Exchange Sensex surrendered early gains to trade lower by 97 points in late morning trade today after investors sold capital goods stocks to book profit. The 30-share index, which had opened higher by 31 points, fell by 97 points, or 0.52 per cent, to 16,622 points. The wide-based National Stock Exchange index Nifty fell by 30 points, or 0.40 per cent, to 4,958 points. It had touched a high of 4,998 points in opening trade. Brokers said profit-taking at higher levels as market participants turned cautious in view of approaching year-end mainly reversed an early firm trend.Asian stocks were mixed in early trade. The benchmarck indices in Japan, South Korea and Taiwan rose between 0.17 per cent and 0.90 per cent while indices in China, Hong Kong and Singapore fell between 0.06 per cent and 1.16 per cent.