This document provides an overview of Islamic architecture in India from the 11th century onwards. It discusses the key architectural elements introduced during this period such as the use of arches, domes, and geometric patterns instead of traditional Hindu styles. Some of the most important early Islamic structures mentioned are the Quwwat-ul-Islam Mosque built in 1192, the Qutub Minar started in 1192, and various buildings constructed during the Delhi Sultanate period from the 13th to early 16th centuries, including tombs, mosques, and fortifications. It also describes the evolution of architectural styles and increasing incorporation of Hindu elements over this time frame.