The Sensex at the Bombay Stock Exchange advanced 66 points, or 0.4 percent to 16,683 in opening trade on Tuesday morning. on the back of renewed buying by investors. Climbing further, the Sensex had gained 152 points, or 0.9 percent, to 16,769, a short while ago.Other Asian markets in Singapore, Japan, South Korea, Indonesia, and Hong Kong were mostly lower, today. But Chin's Shanghai Composite index jumped 2.3 percent, boosted by a report of upbeat export and loan growth data for May. Over in the US market, the Dow Jones Industrial Average had gained 1.3 per cent, overnight.