A comprehensive numerical modelling and analysis have been carried out for perovskite solar cell using device simulation software. Rigorous theoretical investigation have been performed for optimization of device parameters more specifically absorber layer. We have obtained the optimum cell performance having PCE (η) = 21.5%, FF = 87.4, Jsc=23.4mA/cm2, Voc=1.05V. We have also studied effect of recombination and trap densities on the performance of cell module. This work will provide guidelines for reasonably selecting material for highly efficient perovskite solar cell.