According to Alberuni’s Kitab-ul-Hind (or Tahqiq-i-Hind) in the 11th century, the Antyaj (classes below the Chaturvarna as Brahmanas, Kshatriyas, Vaishyas, and Shudras) included both categories. They encompassed laborers and craftsmen involved in ‘unclean’ trades like washermen, cobblers, weavers, and shield-makers ...