Tongba (nepali: तोङबा pronounced [toŋba]) is a limbu millet-based alcoholic beverage found in the eastern mountainous region of nepal and the neighbouring darjeeling and sikkim. it is the traditional and indigenous drink of the limbu people as well as people of other kirati communities and many other ethnic group of nepal. tongba is culturally and religiously important to the limbu people. taplejung is the ultimate destination for drinking tongba. offering tongba is a symbol of respect to a guest among the limbu people and also an important drink for special occasions and festivals.

Source: Wikipedia