  Recent sky surveys have discovered a large number of stellar substructures.
It is highly likely that there are dark matter (DM) counterparts to these
stellar substructures. We examine the implications of DM substructures for
electron recoil (ER) direct detection (DD) rates in dual phase xenon
experiments. We have utilized the results of the LAMOST survey and considered a
few benchmark substructures in our analysis. Assuming that these substructures
constitute $\sim 10\%$ of the local DM density, we study the discovery limits
of DM-electron scattering cross sections considering one kg-year exposure and
1, 2, and 3 electron thresholds. With this exposure and threshold, it is
possible to observe the effect of the considered DM substructure for the
currently allowed parameter space. We also explore the sensitivity of these
experiments in resolving the DM substructure fraction. For all the considered
cases, we observe that DM having mass $\mathcal{O}(10)\,$MeV has a better
prospect in resolving substructure fraction as compared to
$\mathcal{O}(100)\,$MeV scale DM. We also find that within the currently
allowed DM-electron scattering cross-section; these experiments can resolve the
substructure fraction (provided it has a non-negligible contribution to the
local DM density) with good accuracy for $\mathcal{O}(10)\,$MeV DM mass with
one electron threshold.
