  We discuss Kaluza-Klein theory for type $II\ b $ supergravity on the warped
deformed conifold using a large radial distance limit of Klebanov-Strassler
solution where the radial coordinate separates from angle coordinates for a
background asymptotic to $ AdS _5 \times T^{1,1}$ spacetime. The decomposition
of field fluctuations on harmonics of the base manifold $T^{1,1}$ and plane
waves of $M_4= \dh (AdS _5 )$ is examined for the metric tensor components
along $M_4= \dh (AdS _5 )$, the axio-dilaton and the 4-form potential
components along $T^{1,1}$. Semi-classical methods are used to compute the mass
spectra, wave functions and interactions for a set of modes in low dimensional
representations of the isometry group. Deformations of the background solution
due to compactification effects are also considered. The information on warped
modes properties is utilized to explore the thermal evolution of a cosmic
component of metastable modes after exit from brane inflation.
