  We consider the effect of density dependent dark matter on the neutron star
mass, radius, and tidal deformability. Nuclear matter (normal matter) as well
as the fermionic dark matter sector is considered in a mean field model. We
adopt the two fluid formalism to investigate the effect of dark matter on the
neutron star properties. In the two fluid picture, there is no direct
interaction between the dark matter and the nuclear matter. Rather these two
sectors interact only through gravitational interaction. The nuclear matter
sector is described by the $\sigma-\omega-\rho$ meson interaction in the
"FSU2R" parameterization. In the dark matter sector, we use the Bayesian
parameter optimization technique to fix the unknown parameters in the dark
matter equation of state. In the two fluid picture, we solve the coupled
Tolman-Oppenheimer-Volkoff (TOV) equations to obtain the mass and radius of
dark matter admixed neutron stars (DANSs). We also estimate the effect of the
density dependent dark matter sector on the tidal deformability of dark matter
admixed neutron stars (DANSs).
