During the Middle Ages, it was a particularly difficult task to rule a very large territory which was a part of the Indian Subcontinent and that too while involving all the different types of diverse people and their cultures. However, as opposed to the predecessors that came before, the dynasty of Mughals managed to create a very large empire and also fulfilled what only seemed impossible at the time for a long period. Starting from the latter part of the 16th century, the Mughals managed to expand the kingdom to Delhi beginning from Agra. Details can be found in the Class 12 History Chapter 4 notes.
Hence, they managed to control almost all the portions of the subcontinent, and that too by the time we stepped into the 17th century. There were different structures of administration that were imposed and new ideas for governing the subcontinent were laid out during the rule of the Mughals. These ideas and rules were left even after the rule ended. All of these concepts are properly cleared out in The Mughal Empire Class 7 notes.