  If inflationary paradigm is correct, then it must create conditions for the
hot big bang model with all observed matter, baryons and the seed perturbations
for the structure formation. In this paper we propose a scenario where the
inflaton energy density is dumped into the bulk in a brane world setup, and all
the required physical conditions are created by the right handed neutrino
sector within supersymmetry. The scalar component of the right handed Majorana
neutrino is responsible for generating the scale invariant fluctuations in the
cosmic microwave background radiation, reheating the Universe at a
temperature~$T_{rh}\leq 10^{9}$ GeV, and finally generating the lepton/baryon
asymmetry, $n_{B}/s\sim 10^{-10}$, with no lepton/baryon isocurvature
fluctuations.
