Delhi Sultanate (12th to 16th century AD) [ edit ] See also: Turkish slaves in the Delhi Sultanate During the Delhi Sultanate period (1206–1555), references to the abundant availability of low-priced Indian slaves abound. [1] [60] Many of these Indian slaves were used by Muslim nobility in the subcontinent, but others were exported to satisfy the demand in international markets. The revenue system of the Delhi Sultanate produced a considerable proportion of the Indian slave population as these rulers, and their subordinate shiqadars, ordered their armies to abduct large numbers of locals as a means of extracting revenue. [61] [62] While those communities that were loyal to the Sultan and regularly paid their taxes were often excused from this practice, taxes were commonly extracted from other, less loyal groups in the form of slaves. Thus, according to Barani, the Shamsi "slave-king" Balban (r. 1266–87) ordered his shiqadars ...