During the Delhi Durbar on 12 December 1911, George V, Emperor of India, while laying the foundation stone for the viceroy's residence in the Coronation Park, Kingsway Camp, declared that the capital of the Raj would be shifted from Calcutta to Delhi. Three days later, George V and his consort, Queen Mary, laid the foundation stone of New Delhi at Kingsway Camp. Large parts of New Delhi were planned by Edwin Lutyens, who first visited Delhi in 1912, and Herbert Baker, both leading 20th-century British architects. The contract was given to Sobha Singh. The original plan called for its construction in Tughlaqabad, inside the Tughlaqabad Fort, but this was given up because of the Delhi-Calcutta trunk line that passed through the fort. Construction really began after World War I and was completed by 1931. The gardening and planning of plantations was led by A.E.P. Griessen, and later William Mustoe. The city that was later dubbed "Lutyens' Delhi" was inaugurated in ceremonies beginning on 10 February 1931 by Viceroy Lord Irwin. Lutyens designed the central administrative area of the city as a testament to Britain's imperial aspirations.