  We consider a model based on $A_4$ symmetry to explain the phenomenon of
neutrino mixing. The spontaneous symmetry breaking of $A_4$ symmetry leads to a
co-bimaximal mixing matrix at leading order. We consider the effect of higher
order corrections in neutrino sector and find that the mixing angles thus
obtained, come well within the $3\sigma$ ranges of their experimental values.
We study the implications of this formalism on the other phenomenological
observables, such as CP violating phase, Jarlskog invariant and the effective
Majorana mass $|M_{ee}|$. We also obtain the branching ratio of the lepton
flavour violating decay $\mu\rightarrow e \gamma$ in the context of this model
and find that it can be less than its present experimental upper bound.
