  A two-component scalar DM scenario comprising an additional scalar doublet
and a $Y$ = 0 scalar triplet is proposed. Key features of the ensuing dark
matter phenomenology are highlighted with emphasis on inter-conversion between
the two dark matter components. For suitable choices of the model parameters,
we show that such inter-conversion can explain the observed relic abundance
when the doublet dark matter component has mass in the \emph{desert} region
while the triplet component has sub-TeV mass. This finding is important in the
context of such mass regions known to predict under-abundant relic for the
standalone cases of the scalar doublet and triplet. In addition, we also show
that the present scenario can stabilise the electroweak vacuum up to the Planck
scale in the parameter space responsible for the requisite dark matter
observables.
