Erasing all its initial gains, the Sensex at the Bombay Stock Exchange declined 51 points, or 0.3 percent, to 19,844, in afternoon deals, a short while ago. Earlier in the morning, however, the Sensex had opened with a gain of 42 points, or 0.2 per cent, at 19,937, on modest buying by investors, amid largely firm Asian bourses. Stock markets in Japan, China, South Korea, Singapore and Indonesia had gained between 0.1 percent and 1.4 percent, today. But Wall Street's Dow Jones Industrial Average had ended 0.4 per cent lower in yesterday's trade. The rupee declined by seven paise to 53.29 in late morning trade today on mild dollar demand from banks and importers despite weakness in the US currency overseas amid higher crude oil prices.The Indian rupee resumed lower at 53.25 per dollar as against yesterday's closing level of 53.22 at the Interbank Foreign Exchange (Forex) Market. It hovered in a range of 53.40 and 53.24 before quoting 53.29 per dollar at 1050 hrs. In New York market, the US dollar fell against the euro yesterday ahead of jobs data, and the Federal Reserve's statement on Wednesday that it will continue easing measures.