  In the light of recent discovery of nonzero $\theta_{13}$, we have analyzed
the Altarelli-Feruglio $A_4$ flavor symmetry model extended with additional
flavon. The inclusion of the new field leads to the deviation from exact
tri-bimaximal neutrino mixing pattern in the context of type-I see-saw by
producing a nonzero $\theta_{13}$ consistent with the recent experimental
results at the leading order. A sum rule for light neutrino masses is also
obtained in this context. The set-up constraints the two Majorana phases
involved in the lepton mixing matrix in terms of $A_4$ parameter space. We have
shown that a nonzero lepton asymmetry can be generated while next-to-leading
order contributions to the neutrino Yukawa couplings are considered. The two
Majorana phases play crucial role in CP-asymmetry parameter and the involvement
of $\theta_{13}$ in it, is exercised.
