In a public letter of 25 November 1791 the government of Lord Cornwallis reported from Calcutta to the Directors of the East India Company in London,

Such was the obituary notice of a man who had been a vital part of Bengal's history for over thirty years and witness to its history for nearly half a century. He had observed the irremediable decline of two empires, that of the Safavids in the land of his birth, Iran, and that of the Mughals in India, the land of his adoption. He had participated in the events which led to the eclipse of the Nawabs and to the rise of the English East India Company in Bengal. He had been the agent of the Company, the defender of the Nizamat, and had been a leading figure throughout what may be called the Anglo-Mughal phase in Bengal's history. That phase was brought to an end on 1 January 1791 with Cornwallis's abolition of the office of Naib Nazim and the final transfer of the Sadar Nizamat Adalat. Nine months later, having worked almost to the end upon cases which had been awaiting his decision before Cornwallis's regulations were passed, Reza Khan died.