  Indirect searches have the potential to probe scales beyond the realm of
direct searches. In this letter we consider the implications of two parity
violating experiments: weak charge of proton $Q_W^p$ and the Caesium atom
$Q_W^{Cs}$ on the solutions to lepton flavour non-universality violations
(LFUV) in the decay of $B$ mesons. Working in a generic implementation of a
minimal $Z^\prime$ model, we assume the primary contribution being due to the
electron to facilitate comparison with the low $q^2$ parity violating
experiments. We demonstrate that the conclusion is characterized by different
limiting behavior depending on the chirality of the lepton current. The
correlation developed in this study demonstrates the effectiveness in studying
the synergy between different experiments leading to a deeper understanding of
the interpretation of the existing data. It is shown that a possible future
improvement in the parity violating experiments can have far reaching
implications in the context of direct searches. We also comment on the prospect
of addition of the muon to the fits and the role it plays in ameliorating the
constraints on models of $Z'$. This offers a complimentary understanding of the
pattern of the coupling of the NP to the leptons, strongly suggesting either a
muon only or a combination of solutions to the anomalies.
