When Liu Manqing reached the Consulate General in Calcutta, Consul General Lu Chunfang advised her on how to keep the official document safe. At a reception hosted by the Consulate General, Lu Chunfang and Liu Manqing successfully cooperated to cope with the British. Laden La also made a special trip from Darjeeling, only to make trouble. By virtue of her wits and courage when facing the customs officers of the British Raj, the important official document was prevented from being opened.

Source：A Mission to Xikang and Tibet, Commercial Press, 1933