of states increases with frequency and is proportional to $\omega^2$ whereas the dipole optical matrix element goes as $\omega^{-1}$ as a result of which at low frequencies, the real optical conductivity is linear in $\omega$. In real systems however it is hard to achieve such fine tuning in the Fermi energy ($E_F$) and hence a cut-off is set by the Fermi level such that the real part of the conductivity is expected to be $$\sigma_1(\omega) = \dfrac{N G_0 \omega}{24 v_F}\Theta(\omega-2E_F) \cdot \label{eq:lin}$$ where $N$ is the number of massless fermion species in the Brillouin zone, $G_0 = 2e^2/h$ is the quantum conductance and $v_F$ is the Fermi velocity. Experimental evidence of such linear optical conductivity with zero intercepts has been reported in Eu$_2$Ir$_2$O$_7$ [@sushkov2015optical] and TaAs [@xu2016optical] among others [@armitage2017weyl]. A more detailed theoretical analysis of the inter-band optical response of TRS breaking WSMs [@PhysRevB.93.085442] however predicts that the single linear optical conductivity should be broken into two regions of quasi-linear conductivity with different slopes by a peculiar kink. The kink is a manifestation of the van Hove singularity, appearing at a frequency that corresponds to the energy difference between the bands crossing to form the Weyl nodes at the 