Tughlaq Buildings and the Use of Greystone

Introduction
The Tughlaq dynasty was a medieval Indian dynasty that ruled over the Delhi Sultanate from 1320 to 1414. The Tughlaq rulers commissioned several architectural marvels, including palaces, fortresses, mosques, and tombs. One distinctive feature of Tughlaq buildings is the predominant use of greystone as a construction material.

Explanation
The correct answer to the given question is option 'A' - Greystone. The Tughlaq rulers, especially Ghiyasuddin Tughlaq and Muhammad bin Tughlaq, favored the use of greystone as it was locally available, durable, and aesthetically pleasing. They used it extensively in the construction of their buildings for various reasons.

Availability
Greystone, also known as Delhi quartzite, was abundantly available in the region. It was found in the Aravalli range of hills, which provided a ready supply of the material for construction purposes. The proximity of the quarries to the construction sites made greystone a convenient and cost-effective choice.

Durability
Greystone is a type of sandstone that is known for its durability and weather resistance. It can withstand the test of time and is resistant to erosion from wind, rain, and other natural elements. This made it an ideal choice for constructing long-lasting buildings that could withstand the harsh climatic conditions of the region.

Aesthetics
Greystone has a unique texture and color that adds to the architectural beauty of the buildings. It has a warm, earthy tone with hints of red and brown, which gives a distinct character to the structures. The Tughlaq buildings, such as the Tughlaqabad Fort and Adilabad Fort, showcase the aesthetic appeal of greystone with their imposing structures and intricate carvings.

Examples of Tughlaq Buildings
1. Tughlaqabad Fort: Built by Ghiyasuddin Tughlaq, this massive fort was constructed using greystone. The fort's walls, bastions, and gates were made of greystone, which contributed to its strength and grandeur.
2. Adilabad Fort: Another notable example of Tughlaq architecture, the Adilabad Fort, also known as Muhammadabad Fort, was constructed using greystone. The fort's massive walls and bastions are made of greystone, showcasing the durability and aesthetic appeal of the material.

Conclusion
In conclusion, the Tughlaq rulers of the Delhi Sultanate extensively used greystone in the construction of their buildings. The availability, durability, and aesthetic appeal of greystone made it a preferred choice for the Tughlaq architects. Examples of Tughlaq buildings such as Tughlaqabad Fort and Adilabad Fort showcase the grandeur and beauty of greystone architecture.