The Partition of Bengal made by Lord Curzon in 1905 lasted until

1. The Partition of Bengal, announced by Lord Curzon's government, came into effect on 16 October 1905. 2. This act caused widespread protests and led to the Swadeshi Movement. 3. Due to the intense political opposition and unrest, the British government decided to annul the partition. 4. The annulment was officially declared by King George V at the Royal Durbar held in Delhi in December 1911. At the same time, the capital of British India was shifted from Calcutta to Delhi. 5. Therefore, the Partition of Bengal made in 1905 lasted until King George V abrogated it in 1911.