Explanation:

After the Battle of Buxar (1764), the British East India Company obtained the diwani rights (rights to administer and collect tax revenue) for Bihar, Bengal and Odisha. The rich resources of fertile land, water and skilled labour had attracted the foreign imperialists, particularly the Dutch and British, in the 18th century. A number of agriculture-based industries had been started in Bihar by foreign entrepreneurs. Bihar remained a part of the Bengal Presidency of British India until 1912, when Bihar and Orissa was carved out as a separate province.