To improve cultivation in Doab, Muhammad bin Tughlaq set up a separate agriculture department known as:
- ADiwan-i-Istiaq
- BDiwan-i-Amir-Kohi
- CDiwan-i-Mustakhraj
- DDiwan-i-Arz
Solution & Step-by-step Explanation
Sultan Muhammad bin Tughlaq established a dedicated agricultural department called Diwan-i-Amir-Kohi to bring uncultivated land under farming and provide state loans (taccavi) to farmers to counter distress in the fertile Doab region.