Tsewang Dorji Namjal[a] (1732–1750) was the mid-eighteenth century khan or ruler of the Dzungar Khanate, which covered most of present-day Xinjiang and part of eastern Kazakhstan, Kyrgyzstan and southern Siberia.
Galdan Tseren had implemented modern irrigation systems in the fertile oases of his empire by bringing in Turkic Taranchi people who possessed the requisite skills for such innovations.
[2] In the last years of Galdan Tseren era there was talk of increasing tension with Imperial Russia, but bipartisan relations were not beyond repair; an influential faction within the Russian political elite saw the maintenance of an independent khanate in Dzungaria as an important counterbalance to Chinese influence on the southeastern border with Siberia.
In the period after the death of Galdan Tseren an unprecedented internal power-struggle broke out within the Khanate, which resulted in total anarchy and its eventual destruction.
However, available sources describe him as someone who was seen in his youth as a perverse, cruel and paranoid man who drank copious amounts of alcohol[1] and was "more interested in killing dogs than attending to affairs of state".