  $CP$ violation asymmetry is expected to be very small within the Standard
Model. Observation of $CP$ violation in charm sector would hint towards New
Physics. 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 charm
meson decays. The results from previous searches at BaBar and LHCb
Collaborations and the latest results from Belle are reported. The most recent
result from Belle performed in $D^{0} \to K^{+}K^{-}\pi^{+}\pi^{-}$ decays
using kinematic asymmetry variables is the first measurement of its kind.
