Paring initial gains on poor GDP growth numbers, the Sensex at the Bombay Stock Exchange ended with a small gain of 22 points, or 0.1 percent, at 17,753, after volatile trade, on Wednesday. The Nifty at the National Stock Exchange rose 10 points, or 0.2 percent, to 5,385.Stock markets in Hong Kong, Singapore and South Korea rose between 0.5 percent and 1.3 percent.