In whose viceroyalty was the capital of India transferred from Calcutta to…

Concept: Each British Viceroy of India held office for a fixed tenure, and major administrative proclamations of the Raj were formally announced at ceremonial gatherings called Durbars. To identify which viceroy presided over a given event, match the event's date to the viceroy whose tenure covers that date.

Application: The transfer of India's capital from Calcutta to Delhi was announced by King George V at the Delhi Durbar held in December 1911, together with the annulment of the 1905 Partition of Bengal. December 1911 falls within the viceroyalty of Lord Hardinge II, who held office from 1910 to 1916. It was under his administration that the shift of the capital was carried out.

Cross-check: comparing the tenure of each named viceroy against the December 1911 date rules out every other option.

• Lord Curzon's tenure (1899-1905) ended six years before the 1911 Durbar; he is instead remembered for the Partition of Bengal, which was the very decision annulled at that Durbar.

• Lord Chelmsford's tenure (1916-1921) began only after the capital had already shifted; he is associated with the later Montagu-Chelmsford Reforms and the Rowlatt Act.

• Lord Reading's tenure (1921-1926) began a decade after the 1911 Durbar, well after Delhi had already become the capital.

Only Lord Hardinge II's 1910-1916 tenure overlaps December 1911, confirming that the capital was transferred from Calcutta to Delhi during his viceroyalty.