This　paper　deals　with　the　Einstein＇s　field　equations　for　the　space-time　described　by　an　inhomogeneous　plane　symmetric　metric　in　presence　of　dark　energy　with　time　varying　cosmological　term　I　＞.　The　dark　energy　is　given　by　either　the　quintessence　or　Chaplygin　gas.　It　is　shown　that　the　models　are　isotropic　and　the　deceleration　parameter　of　the　models　is　constant.