  We investigate a variant of Left-Right symmetric model based on $E_6$
inspired $SU(3)_C \otimes SU(2)_L \otimes U(1)_L \otimes SU(2)_R \otimes
U(1)_R$ gauge group $(32121)$. Spontaneous breaking of $32121$ down to the
Standard Model (SM) gauge group, requires a bi-doublet under $SU(2)_L \otimes
SU(2)_R$, a right-handed doublet scalar under $SU(2)_R$ along with a $SU(2)$
singlet scalar boson. Symmetry breaking leads to several neutral and charged
massive gauge bosons apart from the SM $W$ and $Z$. The Large Hadron Collider
(LHC) results for the search of heavy gauge bosons can be used to constrain the
vacuum expectation values responsible for giving masses to these extra heavy
gauge bosons. Physical spectrum of the scalar bosons contains several neutral
CP-even and CP-odd states and a couple of charged scalars apart from the
SM-like Higgs boson. We have put constraints on the masses of some of these
scalars from the existing LHC data. The possible decay rates and production
cross-sections of these scalars have been investigated in some details.
Production cross-sections for some of the scalars look promising at 14 TeV and
27 TeV run of the LHC with high luminosity option. As the model stems from
Grand Unified group $E_6$, we keep all the fermions present in the
$27$-dimensional fundamental representation of $E_6$. Mass limit of one such
exotic lepton has also been derived from present LHC data. It is noted that
some of these neutral exotic lepton or neutral scalar bosons of this model can
serve the purpose of a cold dark matter.
