Holeya (holayar, holaya, holiar, holer, or holeyar) is one of the main social groups found in south India mainly in Karnataka. They are officially known by Adi Karnataka, Adi Dravida, Adi Kannadiga. Holeyars are known by diffrent names; they are known as Chalavadi in some regions. Generally they are collectively known as right-hand Scheduled Castes. They form the largest segment of scheduled castes in Karnataka. History supports that they were Buddhists at one time. They are also found in the neighboring states. Holeyar and their familial social groups are regarded as Martial Races by anthropologists as well as historians therefore the employment of these social groups in medieval armies and later in British army indicate the same. Interestingly in Southern and Western India these groups traditionally opposed and fought the upper caste hegemony and have led the Ambedkarite movement on post-Ambedar era.