  In this paper we propose a model based on $A_4$ discrete flavor symmetry. We
implemented the inverse seesaw mechanism in order to get the right handed
neutrino mass at TeV scale and explore neutrino and dark matter sectors.
Non-abelian discrete $A_{4}$ symmetry spontaneously breaks into $Z_{2}$
subgroup and hence provide stable dark matter candidate. To constrain the
Yukawa Lagrangian of our model, we imposed Z$'_2$ and Z$_3$ cyclic symmetries
in addition to the $A_4$ flavor symmetry. In our work we used the recently
updated data on cosmological parameters from PLANCK 2018. For the dark matter
candidate mass around 45 GeV-55 GeV, we obtained the mediator particle
mass(right-handed neutrinos) ranging from 138 GeV to 155 GeV. We found Yukawa
coupling in the range 0.995-1 in order to get observed relic abundance of dark
matter.
