The document summarizes the architecture of the sultanate period in Delhi between 1191-1526 AD. It describes the architectural developments during the rule of the Mamluk dynasty (1191-1290), the Khalji dynasty (1290-1320), the Tughlaq dynasty (1320-1413), the Sayyid dynasty (1414-1451), and the Lodi dynasty (1451-1526). Some of the important structures from this period mentioned include Quwwat-ul-Islam Mosque, Qutub Minar, Alai Minar, Hauz Khas, and the tombs of Ghiyasuddin Tughlaq, F