The correct option is C Both 1 and 2
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Khalji architecture is also known as Selijuk style of architecture which was also characterized by memorial tombs which were usually octagonal structures with domed roofs.
Siri Fort, in the city of New Delhi, was built during the rule of Alauddin Khilji, the ruler of the Delhi Sultanate, to defend the city from the onslaught of the Mongols.