Diwani-i-WIzarat:It was the finance department headed by the wazir (Prime-minister). Naib wazir acted as deputy to wazir. The wazir was assisted by the mushrif-i-mamalik, (accountant) who maintained a record of the accounts and the mustauf-i-mamalik (auditor) who audited this account. Under Firuz Tughluq, wazirs became hereditary.
Diwan-i-Ariz: Headed by the Ariz-i-mamalik, it was the ministry of defence. He was responsible for organization and maintenance of the royal army. The review of the army and branding of the horses was done by Ariz-i-mamalik.
Diwan-i-Insha: The department of correspondence and records of the royal court was held under the charge of a central minister known as dabir-i-mamalik, dabir-i-khas or amir- munshi. The dabir-i-mamalik acted as private secretary of the Sultan and drafted firmans. He was assisted by dabirs (clerks).
Diwan-i-Risalat:Under the period of the slave dynasty, the head of the public charities and ecclesiastical department was the sadr-us-sudur. In his capacity as rasul of the Sultan, he received appeals and complaints from public and redressed their grievances.TSPSC Notes brings Prelims and Mains programs for TSPSC Prelims and TSPSC Mains Exam preparation. Various Programs initiated by TSPSC Notes are as follows:-
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