Chor Minar in the Hauz Khas area of Delhi was constructed by Alauddin Khilji.

Introduction:
Chor Minar is a historical monument situated in the Hauz Khas area of Delhi, India. It is a 13th-century tower that was constructed during the reign of Alauddin Khilji, the second ruler of the Khilji dynasty of the Delhi Sultanate. The tower serves as a significant historical landmark and holds great cultural and architectural value.

Construction:
The Chor Minar, which translates to "Tower of Thieves," was built in the early 14th century by Alauddin Khilji. It is believed to have been constructed as a symbol of punishment for thieves and criminals. The tower stands about 21 meters tall and is adorned with small arched openings, which were once used to display the severed heads of criminals.

Architectural Style:
Chor Minar exhibits the distinctive architectural style of the Delhi Sultanate period. The tower is constructed primarily using rubble masonry and stands on a raised platform. It features a circular plan with five balconies, each adorned with several small arched openings. The balconies are believed to have been used to showcase the heads of criminals as a deterrent to potential wrongdoers.

Historical Significance:
Chor Minar holds historical significance as it reflects the strict law and order measures implemented during the reign of Alauddin Khilji. The tower served as a visible reminder of the ruler's authority and the consequences of criminal activities. It also highlights the architectural prowess of the time, with its unique design and intricate detailing.

Present-Day Significance:
Today, Chor Minar stands as a prominent tourist attraction in Delhi. Visitors can explore the tower and marvel at its architectural splendor. The monument provides insights into the rich history and cultural heritage of the Delhi Sultanate period. It serves as a reminder of the past and the power dynamics that shaped the city's history.

Conclusion:
In conclusion, Chor Minar in the Hauz Khas area of Delhi was constructed by Alauddin Khilji, the second ruler of the Khilji dynasty. The tower stands as a testament to the strict law and order measures implemented during his reign and serves as an important historical and architectural landmark in the city.