Bahun
Bahun (बाहुन) is a local term the traditional Indo-Aryan (Khas-Arya) Vedic Brahmin of Nepali origin . They represent the highest of the four Hindu varna, or castes.They are believed to be the offsprings of saptarishis .
History
Brahmins have historically been a caste, one of the four varnas, according to the Varna fourfold Brahminical society (वर्णाश्रम पद्धति). The Brahmin castes may be broadly divided into two regional groups: Pancha-Gauda Brahmins and Pancha-Dravida Brahmins, as per the shloka. Most of the communities are mentioned in much older Vedas and puranas.
Brahmins of Nepal