In 1369, the fourth story was repaired after lightning struck the minaret. During reconstruction, Sultan Firuz Shah Tughlaq elected to reduce the size of the fourth story and then separated it into two stories. Fifth Story like the 4th is a mixture of made of marble and sandstone.

The second, third, and fourth stories were erected by Sham ud-Din Iltutmish, the first Muslim sovereign to rule from Delhi. The second and third stories are also revetted with twelve semicircular and twelve flanged pilasters that are placed in alternating order. fourth Story is a mixture of made of marble and sandstone.

The lowest story, also known as the basement story, was initiated by Qutb-ud-din Aibak was completed during the lifetime of Ghiyath al-Din Muhammad, a sultan of the Ghurid dynasty.

It is revetted with twelve semicircular and twelve flanged pilasters that are placed in alternating order.This story is separated by flanges and by storied balconies, carried on Muqarnas corbels.The story is placed on top of a low circular plinth that is inscribed with a twelve-pointed star with a semicircle placed with each of the angles between the star's points.

The inscriptions on Qutb Minar are written in Arabic and in naskh, a style of Islamic calligraphy. The building is etched with verses from the Quran. It also has praise of rulers like Ghiyath al-Din as well as Muhammad of Ghor, the sultan of the Ghurids

Honeycomb balcony design of Qutab Minar admire the structure and the finesse artwork of the 12th century. Decorative motifs are seen on upper levels.  Bell and Chain Motif of Vedic / Hindu origin is very much notable on the walls of Qutub Minar.