 By the 9th century , kings from all the four castes had occupied the highest seat in the monarchical system in Hindu India . Admitting Kshatriyas to Vedic schools along with Brahmins was customary , but the children of the Vaishya and Shudra castes were not allowed . <unk> by people of all castes is recorded in inscriptions Intercaste marriages in the higher castes were only between highly placed Kshatriya girls and Brahmin boys , but was relatively frequent among other castes . Intercaste functions were rare and dining together between people of various castes was avoided . 
