The BSE benchmark Sensex today regained 19,000 level by spurting 293 points in early trade, led by rally in oil and gas sector stocks after the government approved near doubling of natural gas prices to 8.4 US Dollars from April 1, 2014. The 30-share barometer surged by 293 points to 19,169 with oil and gas, auto and metal sectoral indices leading the rally. The index had gained 324 points in the previous session.Similarly, the wide-based National Stock Exchange index Nifty regained 5,700 level by rising 89 points to 5,773.Meanwhile in Asia, Hong Kong's Hang Seng index rose by 0.77 per cent, while Japan's Nikkei gained 3.29 per cent in the early trade. The US Dow Jones Industrial Average ended 0.77 per cent higher in yesterday's trade