The Straits Times Index fell 9.67 points to 2,431.72.
Malaysian share prices closed 1.51 percent higher, in active trade led by blue chips after a four-day holiday.
The composite index rose 13.84 points to 927.85.
Bangkok share prices closed 0.34 percent higher, rebounding slightly as investors adopted a wait-and-see attitude over a weekend protest against the government. The composite index rose 2.55 points to 747.09.
Jakarta share prices closed flat with renewed interest in banking stocks offsetting falls in the broader market triggered by profit-taking.
The composite index closed up 0.733 points or 0.06 percent at 1,244.126, rising for the fifth straight trading day.
Manila share prices closed 0.96 percent lower due to a downturn on Wall Street and a court ruling that barred Manila Electric Co (Meralco) from raising power tariffs.
The composite index fell 20.66 points to 2,138.71.
Mumbai share prices closed down 1.03 percent in line with weakness on other world markets triggered by fears of higher US interest rates.
The 30-share SENSEX fell 101.29 points to 9,742.58 points.
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