With reference to medieval Indian rulers, which one of the following statements is correct?

1. Alauddin Khalji first set up a separate Ariz’s department
2. Balban introduced the branding system of horses of military
3. Muhammad bin Tughlaq was succeeded by his uncle to the Delhi throne
4. Firuz Tughlaq set up a separate department of slaves

Explanation

Option (d) is correct

• Firoz Shah Tughlaq established several separate departments during his reign, including the Diwan-i-Bandagan, which was specifically created to manage slaves.

Answer: (d) Firuz Tughlaq set up a separate department of slaves