Which of the following architectural monuments/cities were built by Alauddin Khalji?
1. Alai Darwaza, the southern gateway to the Qutub Minar enclosure.
2. Siri, the second city of Delhi, built to defend against Mongols.
3. Hauz-i-Illahi (Hauz Khas) reservoir.
4. Tughlaqabad Fort.
Select the correct answer using the code given below:

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Accepted Answer

Tughlaqabad Fort was built by Ghiyasuddin Tughlaq (founder of the Tughlaq dynasty), not Alauddin. The Alai Darwaza, Siri Fort, and Hauz Khas are significant architectural contributions of Alauddin Khalji.

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