Which of the following architectural masterpieces built during the Sultanate period features the pioneering use of the true Islamic dome and the Alai Darwaza?

💡 Solution & Explanation

The Qutb Minar complex houses the Alai Darwaza, constructed by Ala-ud-din Khilji, which is celebrated as the first Indian building constructed using true Islamic architectural principles including true arches and domes. While Tughlaqabad showcases sloping walls of the Tughlaq era, and Lodi tombs feature double domes, the Alai Darwaza remains the quintessential monument marking the transition to mature Indo-Islamic architecture in Delhi. Red sandstone and white marble inlay further enhance its aesthetic prominence.