Explanation:

The erstwhile Bushahr state was occupied by a Gorkha king from central Nepal from 1803 to 1815. Ranjit Singh, the ruler of the Sikh state in the Punjab, intervened in 1809 and drove the Nepalese army east of the Satluj river. A rivalry between Nepal and the British East India Company over the annexation of minor states bordering Nepal eventually led to the Anglo-Nepalese War (1815–16) or the Gurkha War. Both parties eventually signed the Treaty of Sugauli, following which the Gurkhas were expelled from Kamru, the capital of Bushahr.