  In the course of investigation of our present universe by considering the
five-dimensional locally rotationally symmetric (LRS) Bianchi type-I universe
with time-dependent deceleration parameters in Lyra manifold, it is excitingly
found that the geometry itself of Lyra manifold behaves and consistent with
present observational findings for accelerating universe. The behavior of the
universes and their contribution to the process of evolution are examined.
While studying their physical, dynamical and kinematical properties for
different cases, it is found that this model is a new and viable form of model
universe containing dark energy. It will be very helpful in explaining the
present accelerated expansion behavior of the universe.
