We show that a modification of tribimaximal (TBM) mixing matrix accommodating
non-zero mixing angle $\theta_{13}$ and CP violation can be achieved in a minimal seesaw model with discrete symmetry $S_4$.
This model is very predictive and the undetermined parameters are a common Dirac Yukawa coupling,
lightest heavy Majorana neutrino mass and a Majorana phase in the light neutrino sector.
The unknown parameters are shown to be constrained through leptogenesis by imposing the recent experimental neutrino data. Based on the constraints obtained from neutrino data and leptogenesis, we predict the branching ratios of the lepton flavor violating processes $l_i \rightarrow l_j \gamma$ as well as the effective neutrino mass of neutrinoless double beta decays.