In this paper, we have investigated an anisotropic homogeneous plane symmetric cosmological micro-model in the presence of massless scalar field in modified theory of Einstein's general relativity. Some interesting physical and geometrical aspects of the model together with singularity in the model are discussed. Further, it is shown that this theory is valid and leads to Ein?stein's theory as the coupling parameter ? ?>? 0 in micro (i.e. quantum) level in general.

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A problem of spatially homogeneous Bianchi type-I space-time is investigated in Einstein theory without source of gravitation. Some geometrical natures of the space-time are discussed

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In this paper, we have investigated plane symmetric inhomogeneous cosmological models in the presence of massless scalar field in modified theory of general relativity when source of the gravitational field is a perfect fluid. The physical and geometrical aspects of the models together with singularity involved in the models are also discussed.