He will address two rallies in West Champaran district and one in Sitamarhi, a Congress statement said.
Congress in alliance with JD(U) and RJD is contesting on 41 seats in the state while its other partners are fighting in 101 seats each.
Rahul has addressed a few rallies in Bihar so far.
Eighty-one constituencies have gone to polls so far in two phases and 162 will go in the next three remaining phases.