Architectural Influence of Sultanates of Delhi
The Sultanates of Delhi drew inspiration from ancient architecture in the design and construction of their buildings. Some of the elements they incorporated include:

Mehrab
- The Mehrab, a semicircular niche in the wall of a mosque that indicates the direction of Mecca, was borrowed from ancient Islamic architecture.
- It served both a functional and decorative purpose, enhancing the spiritual experience of worshippers and adding visual interest to the space.

Gumbaj
- The Gumbaj, or dome, is another feature commonly found in both ancient and Sultanate-era architecture.
- Domes were used to cover large interior spaces, provide structural support, and create a sense of grandeur in religious and public buildings.

Arched Openings
- Arched openings, such as doorways and windows, were a prominent feature in both ancient and Sultanate architecture.
- Arches not only added structural stability but also contributed to the aesthetic appeal of buildings, creating a sense of verticality and elegance.

Decorative Figures
- Sultanate buildings often featured intricate decorative figures, such as geometric patterns, calligraphy, and floral motifs.
- These embellishments were influenced by ancient Islamic art and architecture, adding beauty and symbolism to the structures.
In conclusion, the Sultanates of Delhi incorporated various elements from ancient architecture, such as Mehrabs, Gumbajs, arched openings, and decorative figures, in their buildings. By drawing on these historical influences, they were able to create distinctive and visually appealing structures that reflected the cultural and artistic heritage of the region.