The correct option is 1 and 3 only.
Explanation
The Qutub Minar is a quintessential example of early Indo-Islamic architecture, specifically representing the style of the Delhi Sultanate. Construction began under Qutb-ud-din Aibak and was continued by Iltutmish and Firoz Shah Tughlaq. It serves as a victory tower and a minaret attached to the Quwwat-ul-Islam Mosque.
Statement-wise Analysis
- Statement 1 is Correct: The Qutub Minar is a tapering tower that stands approximately 72.5 meters high. It is divided into five distinct storeys. The first three storeys are constructed of red sandstone, while the fourth and fifth storeys (repaired and added by Firoz Shah Tughlaq) are made of marble and sandstone. Thus, it is largely built of red and buff sandstone.
- Statement 2 is Incorrect: The plan of the tower is not circular throughout. The architectural treatment of the fluting (vertical grooves) varies across the storeys:
- The first storey has alternating round and angular flutings.
- The second storey has only round flutings.
- The third storey has only angular flutings.
- Statement 3 is Correct: The tower is renowned for its intricate ornamentation. Each storey is separated by a projecting balcony supported by stone brackets decorated with a honeycomb design (muqarnas). The surface is embellished with bands of inscriptions containing verses from the Quran and foliated designs, showcasing a blend of Indian craftsmanship and Islamic artistic traditions.
Key Takeaway: The Qutub Minar is characterized by its varying fluting patterns across its lower three storeys (alternating, round, and angular) and the use of red sandstone in the lower levels versus marble and sandstone in the upper levels.