  Domain wall formation is quite generic in spontaneous Left-Right parity
(D-parity) breaking models. Since they are in conflict with cosmology, we need
some mechanisms to remove them. Planck scale suppressed effects have been
considered to be quite successful for this purpose. We study this possibility
in Minimal Supersymmetric Left-Right (SUSYLR) model originally proposed by
Kuchimanchi et al \cite{Kuchimanchi:1993jg} where both D-parity and R-parity
$(R_p = (-1)^{3(B-L)+2s})$ are spontaneously broken. We find that Planck scale
suppressed terms allowed for the specific particle content of this model can
successfully remove the domain walls provided the D-parity breaking scale is
relatively low $(\leq 10^5-10^7 \text{GeV})$. However, demanding this theory to
be part of a grand unified theory such as SO(10) forces the D-parity breaking
scale to be very high $(\geq 10^{14} \text{GeV})$ and hence is in conflict with
the constraint from domain wall removal. We also find another class of R-parity
violating SUSYLR models where both these constraints can be simultaneously
satisfied.
