Diwan-i-Arz

The Diwan-i-Arz served as the central military department of the Delhi Sultanate. It functioned as the backbone of the Sultan’s power, responsible for the recruitment, training, equipping, and logistical management of the armed forces. While the Sultan held supreme command over military strategy and led expeditions, the Diwan-i-Arz was the administrative body that ensured the army was functional, well-paid, and disciplined.

Origin and Development of the Office

The department was institutionalized to transition the military from a loose collection of tribal levies into a more organized state-controlled force.

• Establishment: The Diwan-i-Arz was formally established by Ghiyasuddin Balban to curtail the power of the nobility and to enhance the military readiness of the state against external threats, particularly the Mongols.
• Structural Independence: By making the Diwan-i-Arz a separate department from the civil administration (Wizarat), Balban ensured that the military command remained directly accountable to the Sultan.
• Evolution: The department evolved through various dynasties, reaching its peak efficiency under Alauddin Khalji, who integrated it into his broader centralization reforms.

Key Administrative Reforms

The Diwan-i-Arz is historically significant for implementing measures that checked corruption and ensured the loyalty of the soldiers.

• Dagh System (Branding): Introduced by Alauddin Khalji, this required horses to be branded to prevent nobles from substituting superior state-issued horses with inferior ones.
• Chehra (Descriptive Rolls): This system involved maintaining a detailed physical description of each soldier in the army. It prevented the fraudulent practice of presenting substitutes during musters and ensured that the Sultan paid for the exact number of troops present.
• Regular Musters: The Ariz-i-Mumalik (head of the department) conducted frequent inspections to verify that the military contingents maintained by the Iqtadars were compliant with state standards.

Functions and Responsibilities

The administrative staff of the Diwan-i-Arz managed the lifecycle of the military establishment through several key functions:

• Personnel Management: The department handled the recruitment of troops, including foreign mercenaries and local Indian recruits.
• Salary Disbursement: The office calculated and distributed salaries, which were provided either in cash (naqd) or through land revenue assignments (Iqtas).
• Logistics and Supply: The department managed the procurement and storage of weaponry, armor, and provisions required for both garrison duties and sustained military campaigns.
• Coordination with Wizarat: The department worked closely with the Diwan-i-Wizarat to ensure that military expenditures were aligned with the state treasury’s revenue collections.

Key Officials within the Military Hierarchy

The military administration relied on a specific hierarchy of officials:

• Ariz-i-Mumalik: The head of the Diwan-i-Arz. He was responsible for the operational efficiency of the army but was not necessarily the field commander.
• Naib-i-Ariz: The deputy who assisted the head of the department in daily administrative and logistical tasks.
• Mushrif-i-Arz: The financial officer responsible for the audit and record-keeping of military salary disbursements.
• Wazir-i-Lashkar: An official tasked with managing the movement of supplies and coordination between the central military department and provincial camps.

Comparative Influence of the Department Across Dynasties

Historical Facts and Trivia

• The term ‘Ariz’ comes from the Arabic word meaning ‘to present’ or ‘to review,’ highlighting the department’s role in the mustering and inspection of troops.
• The Diwan-i-Arz was not an independent field command; field commanders were appointed by the Sultan based on the exigencies of specific campaigns.
• The language of all military records, including the Chehra (descriptive rolls), was Persian, maintaining a high standard of bureaucratic documentation throughout the Sultanate.
• The administrative legacy of the Diwan-i-Arz directly influenced the Mughal military system, particularly the office of the Mir Bakshi.
• The primary motivation for the department’s establishment was the need to counter the Mongol threat, which required a rapid-response, standing army that could be mobilized without reliance on the nobility’s personal contingents.