The Wazir (or Vizier) was the chief minister and principal advisor to the Sultan in the Delhi Sultanate and other Islamic empires. This position was the highest administrative office below the ruler, overseeing the entire bureaucracy. Patwari (village revenue accountant), Subedar (provincial governor), and Hawaldar (non-commissioned officer in modern military context, though similar roles existed historically) were all lower in the administrative hierarchy.