The construction of the Qutub Minar, the tallest brick minaret in the world (located in the Qutb complex in Mehrauli, South Delhi), commenced in the year 1193, when Qutb-ud-din Aibak (the first Muslim ruler of Delhi) was on the throne. He completed its basement. Iltutmish, Aibak's successor, added three more storeys, and Firoz Shah Tughlaq built the fifth and last storey in 1368.
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Qutb-ud-din Aibak, the first Muslim ruler of Delhi, commenced construction of the Qutub Minar in 1193, but could only complete its basement. His successor, Iltutmish, added three more storeys and, in 1368, Firuz Shah Tughluq constructed the fifth and the last storey.