  Within supersymmetry we provide an example where the inflaton sector is
derived from a gauge invariant polynomial of SU(N) or SO(N) gauge theory.
Inflation in our model is driven by multi-flat directions, which assist
accelerated expansion. We show that multi-flat directions can flatten the
individual non-renormalizable potentials such that inflation can occur at
sub-Planckian scales. We calculate the density perturbations and the spectral
index, we find that the spectral index is closer to scale invariance for large
N. In order to realize a successful cosmology we require large N of order,
N~600.
