Quwwat-ul-Islam Mosque & its inscription

The mosque is built on a raised and paved courtyard, measuring 141 ft. X 105 ft, surrounded by pillared cloisters added by Iltutmish between 1210 and 1220 CE. The stone screen between prayer hall and the courtyard, stood 16 mt at its highest was added in 1196 CE, the corbelled arches had Arabic inscriptions and motifs. Entrances to the courtyard, also uses ornate mandap dome from temples, whose pillars are used extensively throughout the edifice, and in the sanctuary beyond the tall arched screens. What survives today of the sanctuary on the western side are the arched screens in between, which once led to a series of aisles with low-domed ceilings for worshippers . Expansion of the mosque continued after the death of Qutb. Qutbuddin's successor Iltutmish, extended the original prayer hall screen by three more arches. By the time of Iltutmish, the Mamluk empire had stabilized enough that the Sultan could replace most of his conscripted Hindu masons with Muslims. This explains why the arches added under Iltutmish are stylistically more Islamic than the ones erected under Qutb's rule, also because the material used wasn't from demolished temples. Some additions to the mosque were also done by Alauddin Khilji, including the Alai Darwaza, the formal entrance to the mosque in red sandstone and white marble, and a court to the east of the mosque in 1300 CE.