The Sensex at the Bombay Stock Exchange gained 67 points, or 0.4 per cent, to regain the 18,000-point level, and touch 18,008, in opening trade, today, the highest since February 2008. The Sensex rose on aggressive buying by funds, in the expectation of good fourth- quarter results by corporates. After paring its initial gains, the Sensex stood 19 points, or 0.1 percent in the green, at 17,961, a short while ago.Other Asian bourses in Japan, Hong Kong, Indonesia, Taiwan, South Korea and Singapore rose between 0.1 percent and 1.5 percent, on hopes that the US central bank will keep key interest rates at record low levels.