Defending the North-western Frontier of India

Toward the beginning of 1808, Minto decided to open diplomatic relations with Ranjit Singh, the Sikh ruler of Lahore. His objective was to form a defensive alliance against the French. It was believed that an army of invasion from Persia must necessarily march ‘through the Kingdom of Cabul and the territories of Lahore as well as through the countries of several independent Chiefs’ before it could reach the Company's possessions in the Doab.

In a note dated 17 June 1808, Minto wrote:

It was believed in India that an attack on the British territories from the north-west might be directed by two possible routes: the northern route through Persia, Kandahar, Kabul and the Punjab into Oudh, and the southern route through Persia, Kabul and Sind into Bombay. The importance of the Sikh country, situated on the banks of the Sutlej, for the defence of the British territories in India was discussed in a memorandum by David Hopkins, a member of the Company's Bengal Medical Establishment. Comparing the potentialities of Sind and the Punjab, Hopkins wrote that Sind was distinguished neither for its wealth nor its strength and was of importance ‘only as it commands the navigation of the river Indus’. The Punjab, on the other hand, not only commanded the upper Indus valley but was ‘uncommonly fertile… and inhabited by a hardy and brave but an uncivilized and rapacious race of people’. An enemy in possession of the Punjab could easily advance upon Delhi. The presence of the French in Persia and a look at the map of India convinced Minto of the necessity of first sending a political mission to Lahore. Minto had to formulate his cis-Sutlej policy shortly after Metcalfe commenced the negotiations with Ranjit Singh.