Belbase बेलबासे is a surname from the Middle Hills of western Nepal

Nepal

Nepal , officially the Federal Democratic Republic of Nepal, is a landlocked sovereign state located in South Asia. It is located in the Himalayas and bordered to the north by the People's Republic of China, and to the south, east, and west by the Republic of India...

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The origin of the name appears to come from the village Belbas in Pyuthan District

Pyuthan District

Pyuthan District of 212,484. Pyuthan Khalanga is the district's administrative center.-Geography:Pyuthan borders Dang Deukhuri District to the southwest along the crest of the Mahabharat Range and extends about 50 km northeast through the Middle Hills to a 3,000+ meter ridge that is both...

. It translates as "Place of Rest", literally staying under a Bel tree. People who moved from there to other parts of Nepal became known as Belbase. They have their family deity Dudhe Mosta and they belong to Madhu Kalya Gotra.

Others with this surname come from Arghakhanchi District

Arghakhanchi District

Arghakhanchi is one of the districts of Lumbini Zone in Nepal's Western Development Region. The district headquarters are Sandhikharka.-Etymology:...

 of Lumbini Zone

Lumbini Zone

Lumbini Zone, is one of the 14 zones of Nepal and is home to Lumbini site, the birthplace of Siddhartha Gautama, who later became the historical Buddha and founder of the Buddhist philosophy...

. Belbases have moved to other parts of Nepal as well as other countries.