Paring its initial gains, the Sensex at the Bombay Stock Exchange stood 22 points, or 0.1 percent in positive territory, at 21,165 in afternoon trade, a short while ago. Earlier, the Sensex had opened the last day of 2013 with a gain of 74 points, or 0.4 per cent, at 21,217, on selective buying by funds. During 2013, the Sensex has rallied about 9 per cent.Elsewhere in Asia, stock indices in China, Hong Kong, and Singapore had gained between 0.3 percent and 0.7 percent, today. The Bourses in Japan and South Korea were closed for holidays. On Wall Street, the US Dow Jones Industrial