  A supersymmetric hybrid inflation framework is employed to realize a class of
non-minimal inflation models with $U(1)_R \times Z_n$ global symmetry. This
framework naturally incorporates models based on grand unified theories by
avoiding the most commonly faced monopole problem. The predictions of
inflationary observables, the scalar spectral index $n_s = 0.960-0.966$ and the
tensor to scalar ratio $r=0.0031-0.0045$, are in perfect agreement with the
Planck 2018 data. For sub-Planckian values of the field the $Z_n$ symmetry is
only allowed for $n\leq 4$.
