Which of the following places was diamond mining carried out during the Delhi Sultanate period?

The department of 'Diwan-i-Amir-Kohi' dealt with which of the following during Sultanate period?

Who among the following established Delhi as the capital of Sultanate?

Coins- Tanka, Shashgani and Jital of Sultanate period was made of which of the following metals-

Which dynasty of Delhi Sultanate ruled for the shortest period?

Which period is called the era of “the rule of the Forty” in the history of Delhi Sultanate age?