Many rulers of newly formed Indian Princely States enacted substantial administrative reforms in the first half of the nineteenth century as they sought to reinforce their power and secure revenue in the wake of British colonial conquest. In one such case, the ruler of Alwar, Banni Singh, recruited Aminullah Khan, a former record-keeper in Delhi's colonial courts, to serve as diwan (chief minister) and undertake administrative reforms starting in 1838. These reforms focused on agrarian taxation, the civil courts, and the military, and included changes to the roles of local officials, methods of record-keeping, and the language of governance. The reforms were encoded in seven slim volumes of regulations and model forms, handwritten in Persian. Through a study of these regulations, I situate the reforms of Alwar's administration within Banni Singh's broader self-fashioning as a modern ruler in a Mughal mode and show how the reforms drew from both Mughal and colonial ideas of statecraft. The regulations represented a shift toward a legalistic conception of that state as seen in the ideals of good governance that they espoused, and they constructed contractual relationships among villagers, low-level officials in the districts, and the central state through the extensive bureaucratic procedures that they encoded.