15.. With reference to medieval Indian rulers, which one of the following statement is correct?
(d) Firoz Tughlaq set up a separate department of slaves.
(D)
Firoz Tughlaq set up a separate department of slaves known as 'Diwan-i-Bandagan'. Mohd Bin Tughlaq was succeeded by his cousin (not uncle) Firoz
Tughlaq. Alauddin Khalji introduced the branding system of horses in his military.