How far can the Qutub Complex at Mehrauli be considered as an ideal specimen for the study on the development of architecture under the Delhi Sultanate? Analyze.

The complex is an unusually good specimen because it was built and rebuilt continuously from 1192 to the sixteenth century, so the evolution of Sultanate architecture can be read on one site.

What it demonstrates.

• The beginning: borrowed material, indigenous technique. The Quwwat-ul-Islam mosque, begun by Qutbuddin Aibak in 1192, was raised from the materials of demolished temples, with Indian craftsmen using corbelled construction because the true arch was unknown to them. Aibak's screen of 1198 has arches that are corbelled, not voussoired.
• The transition. Iltutmish's extension of 1230 and his tomb of 1235 show masons attempting true arch profiles and Islamic ornament — arabesque and calligraphy — replacing the temple motifs of the first phase.
• The arrival of the true arch and dome. The Alai Darwaza, built by Alauddin Khalji in 1311, is the decisive monument: a genuine voussoired arch and true dome, in red sandstone with marble inlay, with the horseshoe arch and lotus-bud fringe. Indo-Islamic architecture becomes a mature synthesis here.
• Continuity across dynasties. The Qutb Minar was begun by Aibak, completed by Iltutmish, repaired by Firoz Shah Tughlaq and again by Sikandar Lodi, so four dynasties are legible in one structure.

Where it falls short as an ideal specimen. It is entirely imperial and Delhi-centric, and shows nothing of the provincial styles of Bengal, Gujarat, Jaunpur or the Deccan; it has no example of the Tughlaq batter-walled austerity or the Lodi octagonal tomb. It is an ideal specimen of the Delhi line, not of the Sultanate as a whole.