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$CP$ violation asymmetry is expected to be very small within the StandardModel. Observation of $CP$ violation in charm sector would hint towards NewPhysics. Time-reversal asymmetry is sensitive to $CPV$ via the $CPT$ Theorem,and is a clean and alternative way to search for CP violation in charm decays.This is achieved by the use of triple-product correlations in 4-body charmmeson decays. The results from previous searches at BaBar and LHCbCollaborations and the latest results from Belle are reported. The most recentresult from Belle performed in $D^{0} \to K^{+}K^{-}\pi^{+}\pi^{-}$ decaysusing kinematic asymmetry variables is the first measurement of its kind.

CP violating triple product asymmetries in charm decays