  We present a model-independent analysis of Leptonic CP violation for some
well known mixing scenarios. In particular, we considered modified schemes for
Bimaximal(BM), Democratic(DC), Hexagonal(HG) and Tribimaixmal(TBM) mixing for
our numerical investigation. These model-independent corrections to mixing
matrices are parameterized in terms of complex rotation matrices ($U$) with
related modified PMNS matrix of the forms \big($U_{ij}^l\cdot V_{M},~V_{M}\cdot
U_{ij}^r$ \big ) where $U_{ij}^{l, r}$ is complex rotation in ij sector and
$V_{M}$ is unperturbed mixing scheme. We present generic formulae for mixing
angles, Dirac CP phase($\delta_{CP}$) and Jarkslog Invariant($J_{CP}$) in terms
of correction parameters. The parameter space of each modified mixing case is
scanned for fitting neutrino mixing angles using $\chi^2$ approach and the
corresponding predictions for Leptonic CP Phase($\delta_{CP}$) and Jarkslog
Invariant($J_{CP}$) has been evaluated from allowed parameter space. The
obtained ranges are reported for all viable cases.
