  The recent experimental data on mixing angles for quarks and neutrino have
been discussed. Quarks mixing angles are calculated in the phenomenological
approach of Fritzsch-Scadron-Delbourgo-Rupp (FSDR approach) using mass values
of light and heavy constituent quarks. The neutrino mixing angles have been
calculated with the high degree of precision with the help of the hypothesis of
quarks and neutrino mixing angles complementarity, the results obtained do not
contradict with the present experimental data.
