Thapar, Richard H. Davis and others argue that these iconoclastic actions were not primarily driven by religious zeal, but were politically strategic acts of destruction in that temples in medieval India were sites associated with sovereignty, royal power, money, and authority. According to Wink, the iconoclasm was a product of "religious, economic and political" and the practice undoubtedly escalated due to the "vast amount of immobilized treasure" in these temples. As the Indo-Islamic conquests of the 11th and 12th-centuries moved beyond Panjab and the Himalayan foothills of the northwest into the Ganges-Yamuna Doab region, states Andre Wink, "some of the most important sacred sites of Indian culture were destroyed and desecrated," and their broken parts consistently reused to make Islamic monuments. Phyllis Granoff notes that "medieval Indian religious groups faced a serious crisis as invading Muslim armies sacked temples and defaced sacred image". The 11th and 12th-century additionally witnessed the rise of irregulars and then Banjara-like groups who adopted Islam. These were "marauding bands" who caused much suffering and destruction in the countryside as they searched for food and supplies during the violent campaign of Ghurids against Hindustan. The religious icons of Hindus were one of the targets of these Islamic campaigns. The 11th to 13th-century period did not witness any systematic attempts at forced conversions of Hindus into Muslims, nor is there evidence of widespread Islamicization in al-Hind that emerged from the violent conquest. The political power shifted from Hindu kings to Muslim sultans in conquered areas. If some temples were not destroyed in these areas, it did result in a loss to Hindu temple building patronage and an uprooting of Hindu sacred geography. The second half of the 13th-century witnessed raids on Hindu kingdoms by Muslim forces controlling the northwest and north India, states Peter Jackson. These did not lead to sustained persecution of the Hindus in the targeted kingdoms, because the Muslim armies merely looted the Hindus, took cattle and slaves, then left. The raids caused suffering, yet also rallied the Islamic faithfuls and weakened an infidel prince by weakening his standing among his Hindu subjects. These raids were into Rajput kingdoms, those in central India, Lakhnawti–Awadh, and in eastern regions such as Bihar. Numerous Islamic texts of that era, states Wink, also describe "forced transfer of enslaved Indian captives (ghilman-o-jawari, burda, sabaya), specially women and children" over the 11th-century from Hindustan. Delhi Sultanate (13th–16th century) The