What are Monuments built by alaudin khilji?

Alauddin Khilji, the ruler of the Delhi Sultanate in the 13th century, is known for several significant architectural contributions. Notable monuments built during his reign include the Alai Darwaza, a grand gateway to the Qutb Complex in Delhi, characterized by intricate carvings and Indo-Islamic architectural style. He also initiated the construction of the Siri Fort, which served as a defensive structure, and the architectural developments in the city of Siri, one of the first planned cities of medieval India.