The intent of the article is to explore the effect of magnetic field, radiation, chemical reaction and viscous dissipation on the unsteady heat and mass transfer on a permeable flat plate immersed in a porous media saturated with nanofluid. The nanofluid considered is the suspension of copper nanoparticles with water as base fluid. A mathematical model is constructed using the mass, momentum, energy and concentration equations to evaluate the efficacy of various imperative parameters. The highly non-linear governing equations are simplified using similarity variables and solved using Keller Box Method. The numerical computations are performed for various parameters involved in the model and the qualitative results are compared to those available in literature. The velocity of the nanofluid is predominantly affected by varying nanoparticle volume fraction and magnetic parameter. The radiation and viscous dissipation parameter majorly alters the rate of heat transfer. The Schmidt number and chemical reaction parameter holds the key role in mass transfer. The graphical depiction of dependency of velocity, temperature and concentration profiles on variation of governing parameters is also presented in the paper.