Kumar and Kejriwal would be together at a seminar to celebrate completion of four years of Right to Service Act in Bihar, an official statement said here today.
Kejriwal will be the chief guest at the seminar, it said.
Tomorrow's event comes close on the heels of the two leaders sharing platform at a programme in Delhi to honour people excelling in different fields while living in the national capital.
Kumar's party JD(U) did not field any candidate in Delhi election against AAP and JD(U) leaders even campaigned for Kejriwal's party.
Kejriwal reciprocated the gesture by appealing to people from Bihar living in Delhi to impress upon their relatives back home to vote for Kumar in the crucial Bihar assembly election scheduled in September-October.
Presence of Kejriwal is also seen as an attempt to stir youths in favour of Kumar and to boost his image.
