  We consider Randall-Sundrum set up (RS) to be a theory of flavour, as an
alternative to Froggatt-Nielsen models instead of as a solution to the
hierarchy problem. We consider a modified RS framework between the Planck scale
and the GUT scale. This also alleviates constraints from flavour physics.
Fermion masses and mixing angles are fit at the GUT scale. The ranges of the
bulk mass parameters are determined using a $\chi^2$ fit taking in to
consideration the variation in $\mathcal{O}(1)$ parameters. In the hadronic
sector, the heavy top quark requires large bulk mass parameters localising the
right handed top quark close to the IR brane. Two cases of neutrino masses are
considered (a) Planck scale lepton number violation and (b) Dirac neutrino
masses. Contrary to the case of weak scale RS models, both these cases give
reasonable fits to the data, with the Planck scale lepton number violation
fitting slightly better compared to the Dirac case. In the Supersymmetric
version, the fits are not significantly different except for the variation in
$\tan\beta$. If the Higgs superfield and the SUSY breaking spurion are
localized on the same brane then the structure of the sfermion masses are
determined by the profiles of the zero modes of the hypermultiplets in the
bulk. Trilinear terms have the same structure as the Yukawa matrices. The
resultant squark spectrum is around $\sim 2-3 \text{TeV}$ required by the light
Higgs mass to be around 125 GeV and to satisfy the flavour violating
constraints.
