Correct option is D
The Diwani Rights refer to the rights to collect revenue (taxes) from Bengal, Bihar, and Orissa. These rights were granted to the East India Company by the Mughal Emperor Shah Alam II after the Treaty of Allahabad, signed in 1765 following the Battle of Buxar in 1764. The East India Company, led by Robert Clive, defeated the combined forces of the Nawab of Bengal, Mir Kasim, the Nawab of Awadh, Shujauddaulah, and the Mughal Emperor. This transfer of Diwani marked the beginning of British control over Bengal's revenue and is considered a significant step toward the establishment of British rule in India.
