  In this study, we explore the effects of $\mathcal CP$-violating anomalous
interactions of the top-quark through the semileptonic decay modes of the
top-quark arising due to pair-production of $t\bar{t}$ at the Large Hardon
Collider. Predictions on the LHC sensitivities of the coupling strength to such
$\mathcal CP$-violating interactions would be discussed for the 13 TeV LHC data
and for the future hadron collider with 14 TeV energy.
