Step 1: Understanding the Concept:
This question asks for the year when the controversial Partition of Bengal was revoked.
Step 2: Detailed Explanation:
\[\begin{array}{rl} \bullet & \text{The Partition of Bengal was first implemented by the British Viceroy Lord Curzon in 1905. This decision was met with widespread protests and the launch of the Swadeshi movement across India. } \\ \bullet & \text{Due to the intense political opposition, the British government decided to reverse the decision. } \\ \bullet & \text{The annulment of the partition was officially announced in 1911 by King George V at the Delhi Durbar. At the same time, the capital of British India was shifted from Calcutta to Delhi. } \\ \end{array}\]
Step 3: Final Answer:
The partition of Bengal was annulled in 1911.