Correct Answer:
Option A - Muhammad bin Tughlaq created a department of agriculture known as Diwan-i-Kohi. The main objective of the department was to increase the land under cultivation and improve cultivation in the Doab region.
A. Muhammad bin Tughlaq created a department of agriculture known as Diwan-i-Kohi. The main objective of the department was to increase the land under cultivation and improve cultivation in the Doab region.