The document summarizes the different dynasties that ruled Delhi from 1206 to 1526 AD. It discusses the Slave Dynasty, the Khalji Dynasty, the Tughlaq Dynasty, the Sayyid Dynasty and the Lodi Dynasty. It provides details about some of the notable rulers like Shamsuddin Iltutmish, Raziyya Sultan, Jalaluddin Khalji, Alauddin Khalji, Ghiyasuddin Tughlaq, Muhammad bin Tughlaq and Firoz Shah Tughlaq. It also compares the administrative policies of Alauddin Khalji and Muhammad bin Tughlaq and their effectiveness.