In this talk I will present  some aspects of CP violation in
in the Higgs sector and in Supersymmetry (SUSY).
I will discuss a few ideas  in the determination of CP nature of the
Higgs boson at the LHC and at the ILC. In this  I will discuss
ways of probing anomlaous $VVH$ and $t \bar t H$ vertices, including effects
of CP violation. If time permits I will also mention an
interesting aspect of the Higgs phenomenology in
presence of CP violation in SUSY. For
certain regions in the supersymmetric parameter space, the light neutral
Higgs could have escaped detection at LEP.  The Tevatron and LHC also will
not have reach in the usual search channels of the Higgs in this case. I
will discuss aspects of the phenomenology of a light charged higgs, lighter
than the top, which must exist in this case and show how it can
help close this 'hole' in the parameter space at the LHC.

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