Which of the following architectural monuments constructed during the Sultanate period is celebrated as the earliest example of Islamic architecture in India built entirely with red sandstone and featuring the famous Alai Darwaza?

💡 Solution & Explanation

The Qutb Minar complex in Delhi houses structures like the Quwwat-ul-Islam mosque and the Alai Darwaza built by Alauddin Khalji which represents a masterpiece of Indo-Islamic architecture utilizing true arches and red sandstone. Adhai Din Ka Jhonpra was constructed in Ajmer. Tughlaqabad Fort exemplifies the austere sloping stone walls characteristic of the Tughlaq dynasty. The Qutb complex illustrates the architectural transition from spolia reuse to refined masonry construction.