  The paper deals with generalized Rastall theory of gravity and its
cosmological consequences in the background of homogeneous and isotropic flat
FLRW model with perfect fluid as the matter context. The model shows a non
singular era (emergent scenario) at the early phase of expansion for a
particular choice of the Rastall parameter. Also the model finds to be
equivalent to the particle creation mechanism in Einstein gravity in the
framework of non-equilibrium thermodynamics. Universal thermodynamics is
briefly presented and it is found that the entropy function in Rastall theory
is the usual Bekenstein entropy and there is no correction to it. Finally, a
complete cosmic history starting from inflation to late time acceleration is
presented for suitable choices of the Rastall parameter.
