  The lightest neutralino, assumed to be the lightest supersymmetric particle,
is proposed to be a dark matter (DM) candidate for the mass range around
$\cal{O}$(100) GeV. Constraints from various direct dark matter detection
experiments and Planck measurements exclude a substantial region of parameter
space of minimal supersymmetric standard model (MSSM). However, a
"mild-tempered" neutralino with dominant bino composition with a little
admixture of Higgsino is found to be a viable candidate for DM. Within the MSSM
framework, we revisit the allowed region of parameter space which is consistent
with all existing constraints from direct detection experiments. Regions of
parameters that are not sensitive to direct detection experiments, known as
"blind spots", are also revisited. Complimentary to the direct detection of DM
particle, mild-tempered neutralino scenario is explored at the LHC with the
center of mass energy $\rm \sqrt{s}$=13 TeV through the top-squark pair
production, and its subsequent decays with the SM like Higgs boson in the final
state. Our considered channel is found to be very sensitive also to the blind
spot scenario. A reasonable signal sensitivity is achieved using the cut-based
method for the high luminosity options $\rm 300 ~fb^{-1}$ and $\rm 3000
~fb^{-1}$, which are further improved by applying the multi-variate analysis
(MVA) technique.
