brought back and installed Ibrahim Quli as sultan. The early Qutb Shahi sultans prohibited Hindus from observing their religious festivals, states Annemarie Schimmel – a scholar of Islamic studies. During the reign of Muhammad Quli Qutb Shah (1580–1611), who was a more tolerant ruler, the Hindus were allowed to observe their religious festivals like Diwali and Holi in open. Later Sultans such as Tana Shah, appointed Brahmin Hindus such as Madanna and Akkanna as ministers in charge of tax collection and exchequer. However, this led to significant factionalism between the Muslim elites and the rising power of the Brahmin Hindus. The Muslim faction reached out to Aurangzeb, who sent a regiment led by his son to attack Golconda. They beheaded Madanna and Akkanna, along with plundering the property and killing many more Hindus in administrative positions of the Qutb Shahi dynasty. Shortly thereafter, the last Sultan of dynasty was jailed in Daulatabad by Aurangzeb, and the Qutb Shahi dynasty came to an end. Golconda, and with the construction of the Char Minar, later Hyderabad, served as capitals of the sultanate, and both cities were embellished by the Qutb Shahi sultans. The dynasty ruled Golconda for 171 years, until the Mughal emperor Aurangzeb conquered the Deccan in 1687. The territory of the Golconda Sultanate was made into a Mughal imperial province, Hyderabad Subah. Economy The Golconda Sultanate was notoriously wealthy. While its primary source of revenue was land tax, the sultanate greatly profited from its monopoly on diamond production from mines in the southern districts of the kingdom. The sultanate also had control over the Krishna and Godavari deltas, giving it access to craft production in the villages of the area, where goods like textiles were produced. The town of Masulipatnam served as the Golconda Sultanate's primary seaport for the export of diamonds and textiles. The kingdom reached the peak of its financial prosperity in the 1620s and 1630s. Cotton-Weaving During the early seventeenth century, a strong cotton-weaving industry existed in the Deccan region. Large quantities of cotton cloth were produced for domestic and exports consumption. High quality plain and patterned cloth made of muslin and calico was produced. Plain cloth was available as white or brown colour, in bleached or dyed variety. This cloth was exported to Persia and European countries. Patterned cloth was made of prints which were made indigenously with indigo for blue, chay-root for red coloured prints