  Correlations exhibited by neutrino oscillations are studied via quantum
information theoretic quantities. We show that the strongest type of
entanglement, genuine multipartite entanglement, is persistent in the flavour
changing states. We prove the existence of Bell-type nonlocal features, in both
its absolute and genuine avatars. Finally, we show that a measure of
nonclassicality, dissension, which is a generalization of quantum discord to
the tripartite case, is nonzero for almost the entire range of time in the
evolution of an initial electron-neutrino. Via these quantum information
theoretic quantities capturing different aspects of quantum correlations, we
elucidate the differences between the flavour types, shedding light on the
quantum-information theoretic aspects of the weak force.
