Under the Nawabs of Bengal, the Naib Nazim of Dhaka was in charge of the city. As the principal tax collector, the annual revenue of the Naib Nazim was 1 million rupees, which was a staggeringly high amount in that era.[51] The Naib Nazim was the deputy governor of Bengal. He also dealt with the upkeep of the Mughal Navy. The Naib Nazim was in charge of Dhaka Division, which included Dhaka, Comilla, and Chittagong. Dhaka Division was one of the four divisions under the Nawabs of Bengal. The Nawabs of Bengal allowed European trading companies to establish factories across Bengal. The region then became a hotbed for European rivalries. The British moved to oust the last independent Nawab of Bengal in 1757, who was allied with the French. Due to the defection of the Nawab's army chief Mir Jafar to the British side, the last Nawab lost the Battle of Plassey.
