The Scheduled Caste and Scheduled Tribes are officially designated groups of people in India. Ghurye observes that the aboriginal tribes must have come to their present habitat from somewhere else in India. They cannot be considered to be the autochthones of their present tracts. When the history of internal movements of people is not known, It is utterly unscientific to regard some tribe or the other as the original owner of the soil. Science and history do not countenance the practice of calling these tribes aborigines. 'or is it necessary to call them aborigines in order to get their claim for special treatment recognised.