  Various mechanisms may contribute to neutrinoless double beta decay in the
left-right symmetric model. The interference between these mechanisms also
contribute to the overall decay rate. The analysis of the contributions of
these interference terms is important for disentangling different mechanisms.
In the present paper we study interference effects contributing to the decay
rate for neutrinoless double-$\beta$ decay in the left-right symmetric model.
The numerical values for maximum interference for several nuclides are
calculated. It is observed that, for most of the interference terms, the
contribution is smaller than 20$\%$ for all the nuclei considered in the study.
However, the interference between the mass mechanisms (light and heavy) and
$\eta$ mechanism is observed to be in the range 30$\%$-50$\%$. The variation of
the interference effect with the $Q$ values is also studied.
