  Let $\Gamma(\mathbb{Z}_n[i])$ be the zero divisor graph over the ring
$\mathbb{Z}_n[i]$. In this article, we study pancyclic properties of
$\Gamma(\mathbb{Z}_n[i])$ and $\overline{\Gamma(\mathbb{Z}_n[i])}$ for
different $n$. Also, we prove some results in which
$L(\Gamma(\mathbb{Z}_n[i]))$ and $\overline{L(\Gamma(\mathbb{Z}_n[i]))}$ to be
pancyclic for different values of $n$.
