Yeddyurappa said he is not leaving BJP for any selfish reason. He wants to develop Karnataka as a model and welfare state.
The 70-year-old Lingayat leader is credited with bringing BJP to power in Karnataka, making it the first ever party government in the south.
Efforts by top BJP leadership to prevent the exit of Yeddyurapa have failed. He turned more belligerent after BJP rebuffed his repeated attempts to regain Chief Ministership and refused to at least make him the state unit party chief.