  The neutron star properties are generally determined by the equation of state
of $\beta$-equilibrated dense matter. In this work, we consider the interaction
of fermionic dark matter (DM) particles with the nucleons via Higgs exchange
and investigate its effect on the neutron star properties with the relativistic
mean-field model equation of state coupled with DM. We deduce that DM
significantly affects the neutron star properties, such as considerably reduce
the maximum mass of the star, which depends on the percentage of the DM
considered inside the neutron star. The tidal Love numbers both for electric
and magnetic cases and surficial Love numbers are also studied for DM admixed
NS. It is observed that the magnitude of tidal and surficial Love numbers
increase with more DM percentage. Further, we point out that post-Newtonian
tidal corrections to gravitational waves decreased by increasing DM percentage.
Also, the DM effect on the GW signal is significant during the late inspiral
and merger stages of binary evolution for GW frequencies >500 Hz.
