Himalayan artillery c. 1760-1860?

Sep 2018
Did any of the Himalayan states (Nepal, Bhutan, Sikkim, Ladakh, etc.) possess gunpowder artillery during the period of ca. 1760-1860? There were several regional conflicts being fought during this period, both against neighbours, and foreigners like the British, so I'd be interested to know if any of the native armies used their own cannons/mortars/etc. ?