  In this article, we study the Lie point symmetries for the time fractional
generalized Burgers-Fisher (GBF) equation. While getting an appropriate
combination of symmetries, the time fractional partial differential equation
has been transformed to nonlinear fractional ordinary differential equations
(ODE) using Erdelyi-Kober differential operator. Furthermore, using power
series method, we get the exact solution of the nonlinear fractional GBF
equation with the arbitrary nonlinearity.
