  We demonstrate the existence, as well as determine the conditions, of a
Mpemba effect - a counterintuitive phenomenon where a hotter system
equilibrates faster than a cooler system when quenched to a cold temperature -
in anisotropically driven granular gases. In contrast to earlier studies of
Mpemba effect in granular systems, the initial states are stationary, making it
a suitable system to experimentally study the effect. Our theoretical
predictions for the regular, inverse and strong Mpemba effects agree well with
results of event-driven molecular dynamics simulations of hard discs.
