1644, the daughter of the Emperor was severely burnt and a doctor named Gabriel Boughton, formerly the surgeon of the East Indiaman Hopewell, was sent from Surat for her treatment. He was able to successfully treat her burns and in reward the Emperor allowed the company to establish factory at Pipili, Odisha, and for the first time English ships arrived at an eastern port. During 1638, Shah Jahan appointed his son Shah Shuja as the Subahdar of Bengal and Boughton visited the capital at Rajmahal where his services were again used to treat one of the ladies in the palace, and in return, the company was allowed to establish factories in Balasore, Odisha and Hooghly, Bengal in addition to Pipili, Odisha. Shaista Khan was appointed as the governor of Bengal in around 1664 by Mughal Emperor Aurangzeb and was relieved upon his request in around 1682. While he was returning to Delhi, Englishmen sent with him a request to the Emperor to obtain a special firman to do business forever in Bengal; the Emperor was pleased to provide them the Firman and the occasion was celebrated with a 300 gun salute at Hooghly. The investment in Bengal soared, the Bengal residency was separated from Madras and Mr. Hedges was appointed as the chief officer to oversee trade in Bengal. His residence in Hooghly was secured with soldiers obtained from Madras. This is the first time English soldiers came on the soil of Bengal. However, the Firman was vague in many aspects and soon disputes started to grow between the English and the governor. During this time a local disturbance occurred when the zamindar in Bihar attacked the governor of Bihar. Mr. Peacock, the chief of the factory in Patna, was imprisoned by the governor with the assumption that he was involved in the dispute. At the same time their saltpetre trade was disrupted by another rival English company. To protect their trade in Bengal, the original East India Company requested to build a fort in the mouth of Hooghly or on its banks. This request was immediately turned down by Shaista Khan and a 3.5% tax was imposed in addition to the already existing tax of 3,000 rupees, notwithstanding the Firman obtained earlier. Another incident with the Faujdar of Cossimbazar resulted in altercations between the Governor of Bengal and the company causing their ships to leave Bengal without obtaining cargo.