
A careful examination of the epigraphic and literary sources, including accounts left by early European travellers to Assam like Tavernier, Bernier, Manucci and Glanius, speak of Assam as a very fertile country with trading links across Burma into China. Marketable commodities were exported not only to the neighbouring provinces but also to adjacent countries; Burma, Tibet, China- by the mountain passes, land and water routes. Indeed, it was the lucrative trade with Tibet and China passing through Assam that was a vital factor in efforts of the Turko-Afghan kings and the Tai-Shans to capture the Brahmaputra valley.
Colonial reports foreshadow the growing importance of the region as central to the Imperial strategy of opening up communications. Cold statistics and correspondence from the personal papers of leading British firms of the time, Jardine Matheson and Baring Brothers, and debates in the British press and parliament reveal how the issue of opening up of trade with China was intensely pursued. Following the opium imbroglio culminating in the Opium Wars, the colonial power was on the lookout for new routes. The opium trade had grown fundamental to Britain’s economic framework to be ignored/abandoned. So, how did Assam fit into the power play of the politics of trade and expansion? In opium, they found a plausible approach. Opium was all over the frontier. Despite the growth of local poppies in Yunnan, the ‘Chinamen’ exhibited preference for the Patna opium for smoking. The ‘Assam’ opium was also much in demand in Yunnan. Opium became a valuable article for exchange and was found to be traded for gold across the frontier.