Begun by Delhi's first sultan, Qutb-ud-din, and completed by his son-in-law Iltutmish, the 73-m (240-ft) tower was erected to celebrate the Turkish conquest of Delhi.
The tower's contrusction took nearly three decades to complete.
mnli hypothesis: The tower's contrusction took nearly three decades to complete. premise: Begun by Delhi's first sultan, Qutb-ud-din, and completed by his son-in-law Iltutmish, the 73-m (240-ft) tower was erected to celebrate the Turkish conquest of Delhi.