Inter-caste marriage in Nepal
Inter-caste marriage (Nepali: अन्तरजातीय विवाह pronounced [ʌntaɾd͡zatie bibaː]) is a type of marriage that is done outside of one's caste. Nepal has many castes and inter-caste marriage is generally considered taboo.
Source: Wikipedia — Inter-caste marriage in Nepal (CC BY-SA 4.0)