  Beam Energy Scan (BES) program at RHIC is important to search for the
existence of the critical point in the QCD phase diagram. Lattice QCD have
shown that the predictions of the susceptibility of the medium formed in
heavy-ion collisions can be sensitive to the various moments (mean ($\mu$)
=${<x>}$, variance ($\sigma^2$) = ${<(x-\mu)^2>}$, skewness (S) =
$\frac{<(x-\mu)^3>}{\sigma^3}$ and kurtosis ($\kappa$)
=$\frac{<(x-\mu)^4>}{\sigma^4} -3$) of conserved quantities like net-baryon
number ($\Delta$B), net-electric charge ($\Delta$Q) and net-strangeness
($\Delta$S).
  Any non-monotonic behavior of the higher moments would confirm the existence
of the QCD critical point. The recent results of the higher moments of
net-charge multiplicity distributions for Au+Au collisions at $\sqrt{s}_{NN}$
varying from 7.7 GeV to 200 GeV from the PHENIX experiment at RHIC are
presented. The energy and centrality dependence of the higher moments and their
products (S$\sigma$ and $\kappa\sigma^{2}$) are shown for the net-charge
multiplicity distributions. Furthermore, the results are compared with the
values obtained from the heavy-ion collision models, where there is no QCD
phase transition and critical point.
