  Modular symmetries have been impeccable in neutrino and quark sectors. This
motivated us, therefore, to propose a variant of scotogenic model based on
modular $A_4$ symmetry to realize the neutrino mass generation at one-loop
level through radiative mechanism. Alongside, the lepton flavour violating
process $\mu \to e \gamma$ and the muon $g-2$ anomaly are also addressed. The
lightest Majorana fermions turn out to be potential dark matter candidates,
made stable by suitable assignment of modular weights. The relic density of the
same has been computed with annihilations mediated by inert scalars and new
$U(1)$ gauge boson.
