Snapping a four-session rally, the Sensex at the Bombay Stock Exchange declined 62 points, or 0.3 percent, to close at 20,224 on Monday, on profit-booking by investors. The Nifty at the National Stock Exchange fell 30 points, or 0.5 percent, to 6,157.But stock markets in Japan, China, Hong Kong and Singapore rose between 0.1 percent and 1.8 percent.