  Let $\Omega$ be a bounded symmetric domain in $\mathbb C^n$ and $f :\Omega
\to \Omega^\prime$ be a proper holomorphic mapping factored by (automorphisms)
a finite complex reflection group $G.$ We define an appropriate notion of the
Hardy space $H^2(\Omega^\prime)$ on $\Omega^\prime$ which can be realized as a
closed subspace of an $L^2$-space on the \v{S}ilov boundary of $\Omega^\prime$.
We study various algebraic properties of Toeplitz operators (such as the finite
zero product property, commutative and semi-commutative property etc.) on
$H^2(\Omega^\prime)$. We prove a Brown-Halmos type characterization for
Toeplitz operators on $H^2(\Omega^\prime),$ where $\Omega^\prime$ is an image
of the open unit polydisc in $\mathbb C^n$ under a proper holomorphic mapping
factored by an irreducible finite complex reflection group.
