The aspiration of this research paper is to study the influence of temperature dependent variable exponential viscosity, linear variable thermal conductivity and n th order chemical reaction on MHD transitory natural convection heat and mass transfer through permeable medium. The ensuing nonlinear partial differential equations regulating the flow and the boundary conditions are concurrently reduced to nondimensional form by suitable transformations. The regulating non-dimensional equations are

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... discretized using implicit finite difference technique and solved numerically. The outcomes of the numerical solutions are depicted graphically, during which skin friction, Nusselt and Sherwood numbers are set up in tabular form.