The Delhi Sultanate and the Mughal Empire have ruled most of South Asia and the Bengal Sultanate, the Deccan sultanates and the Sur Empire have played major economic and political roles. The peak of the Islamic rule in India was marked under the sharia and proto-industrialised[20] reign of emperor Aurangzeb, the world's largest economy, upon the compilation and establishment of the Fatawa Alamgiri.[21][22][23] The re-introduction of further Islamic policies by Mysore King Tipu Sultan and Arakkal kingdom based at Kannur[24] contributed to South Indian culture.[25][26] The Hyderabad State ruled by the Nizams served as the last self-governing princely state of India until its annexation by the Dominion of India. Over the centuries, there has been significant integration of Hindu and Muslim cultures across India[27][28] and Muslims have played a notable role in the economics, politics, and culture of India.[29]