The Sensex at the Bombay Stock Exchange declined 157 points, or 0.9 percent, to 16,792 in afternoon trade on Monday after the Reserve Bank disappointed the market by keeping key interest rates unchanged in its mid-quarter credit policy review, on Monday. Earlier in Monday morning, however, the Sensex had jumped 153 points to cross the 17,000-level, to 17,103 in opening trade.But other Asian markets in Japan, China, Hong Kong, Taiwan, Indonesia, Singapore and South Korea were up by between 0.2 percent and 1.8 percent on Monday, after the New Democracy party in Greece indicated that it would stick to the outlines of a bailout agreement that Greece had agreed to in February.