  In the present work, flat FRW model of the universe is considered to be an
isolated open thermodynamical system where non-equilibrium prescription has
been studied using the mechanism of particle creation. In the perspective of
recent observational evidences, the matter distribution in the universe is
assumed to be dominated by dark matter and dark energy. The dark matter is
chosen as dust while for dark energy, the following choices are considered: (i)
Perfect fluid with constant equation of state and (ii) Holographic dark energy.
In both the cases, the validity of generalized second law of thermodynamics
(GSLT) which states that the total entropy of the fluid as well as that of the
horizon should not decrease with the evolution of the universe, has been
examined graphically for universe bounded by the event horizon. It is found
that GSLT holds in both the cases with some restrictions on the interacting
coupling parameter.
