<P> Qutab Minar was established along with Quwwat - ul - Islam Mosque around 1192 by Qutab - ud - din Aibak , first ruler of the Delhi Sultanate . The mosque complex is one of the earliest that survives in the Indian subcontinent . The minaret is named after Qutab - ud - din Aibak , or Qutabuddin Bakhtiar Kaki , a Sufi saint . Its ground storey was built over the ruins of the Lal Kot , the citadel of Dhillika . Aibak 's successor Iltutmish added three more storeys . The minar 's topmost storey was damaged by lightning in 1369 and was rebuilt by Firoz Shah Tughlaq , who added another storey . In 1505 , an earthquake damaged Qutub Minar ; it was repaired by Sikander Lodi . On 1 September 1803 , a major earthquake caused serious damage . Major Robert Smith of the British Indian Army renovated the tower in 1828 and installed a pillared cupola over the fifth story , thus creating a sixth . The cupola was taken down in 1848 , under instructions from The Viscount Hardinge , then Governor General of India . It was reinstalled at ground level to the east of Qutab Minar , where it remains . It is known as `` Smith 's Folly '' . </P>
who caused to build qutub minar in delhi
Qutab - ud - din Aibak