  In this talk I discuss a supersymmetric Pati-Salam model of fermion masses
and mixing angles which fits low energy data. The model is then extended to
include an inflationary sector which is shown to be consistent with
Bicep2-Keck-Planck data. The energy scale during inflation is associated with
the PS symmetry breaking scale. Finally, the model is shown to be consistent
with the observed baryon-to-entropy ratio necessary for Big Bang
Nucleosynthesis. It turns out that only the heaviest right-handed neutrino
decays produce the correct sign of the baryon-to-entropy ratio. Nevertheless,
we obtain the observed value due to the process of instant preheating.
