  We estimate contributions from Kaluza-Klein excitations of gauge bosons and
physical charge scalar for the explanation of the lepton flavor universality
violating excess in the ratios $\mathcal{R}(D)$ and $\mathcal{R}(D^*)$ in 5
dimensional Universal Extra Dimensional scenario with non-vanishing boundary
localized terms. This model is conventionally known as non-minimal Universal
Extra Dimensional model. We obtain the allowed parameter space in accordance
with constraints coming from $B_c \to \tau \nu$ decay, as well as those from
the electroweak precision tests.

High Energy Physics - Phenomenology;High Energy Physics - Experiment