Nepal–Britain Treaty of 1860
The Nepal–Britain Treaty was signed on 1 November 1860 in Kathmandu by Jung Bahadur Rana on behalf of King Surendra Bikram Shah and by George Ramsay on the part of Charles Canning, 1st Earl Canning, Governor-General of India. The treaty was ratified on 15 November 1860 in Calcutta.
Source: Wikipedia — Nepal–Britain Treaty of 1860 (CC BY-SA 4.0)