The BSE benchmark Sensex today soaredby 488 points in opening trade. The 30-share index gained 2.19 per cent, to trade at 19,055. with all sectoral indices trading in the positive zone rising up to 7.53 per cent. Banking, realty, capital goods and consumer durables stocks were leading gainers.The wide-based National Stock Exchange index Nifty rose by over 153 points to trade at 5,601.Brokers said sentiments turned buoyant after new RBI Governor Raghuram Rajan yesterday came out with a slew of measures, including more trade settlement in rupees to rescue the battered financial markets. The rupee today strengthened by hefty 138 paise to trade at 65.69 against the dollar at the Interbank Foreign Exchange market after fresh measures by the RBI to stem the currency's slide.The rupee had settled at 67.07 against the dollar yesterday, up by 56 paise over the previous day's close.In the Asian region, Hong Kong's Hang Seng index rose by point 95 per cent, while Japan's Nikkei was up by point 61 per cent in early trade.The US Dow Jones Industrial Average ended point 65 per cent higher yesterday.