"Particularly the Delhi Sultanate was hardly a functioning empire... In the Mewat region south of Delhi, the Shudras led the unrelenting resistance against the Sultans, waging a guerilla operation from hide-outs in the forest. Sultans Nasiruddin and Balban had to clear away the forest before they could hunt down and forcibly convert a substantial part of this population. K.S. Lal quotes an inscription, dated AD 1345, in which the Reddi dynasty of Andhra describes how after the elimination of the Kshatriya defenders, the duty of defending cows and Brahmins fell on the Shudras, “born of the feet of Vishnu”... Another inscription for the same dynasty proudly proclaims Vema’s birth from “the victorious fourth varna”, which “sprang from the feet of Vishnu”, and which ruled “the remainder of the territory once ruled by the dwijas [before the Muslim conquest]”, and describes how his first son Anna-Vota gave agraharas to the Brahmins and how his second son Anna-Vema freed the country of the “crowd of enemies” and used his wealth to sponsor the “men of learning”. It seems that the Shudras took it as a proud duty to defend the country against the Muslims and uphold the Brahminical culture."