KIRTADS found former MLA A Raja belongs to a Christian-converted Scheduled Caste community, invalidating his caste status. Petitioner D Kumar alleged. Thodupuzha: A Vigilance inquiry by KIRTADS (Kerala Institute for Research, Training and Development Studies of Scheduled Castes and Scheduled Tribes) has found that former Devikulam MLA A Raja belongs to the Scheduled Caste community converted to Christianity, invalidating his claimed caste status.