KARACHI: Index heavyweights Muslim Commercial Bank and Oil and Gas Development Co Ltd led Karachi Stock Exchange to a higher close on Tuesday. The benchmark 100-Index rose 0.75 percent or 175.21 points to close at 23,613.20 mark. Pakistan Petroleum Ltd and Engro Corporation Ltd remained investors’ sweethearts today, whereas cement stocks witnessed some profit-taking. Muslim Commercial Bank Ltd gained 1.87 percent to finish at Rs286.50, while Pakistan Petroleum Ltd 1.39 percent to close higher at Rs251.15.