It refers to the marriage of one's daughter to a man of good conduct, learned in the Vedas, and invited by oneself.
Originally intended only for the Brahmins, a Brahma marriage is where a boy is able to get married once he has completed his education in the first stage of life, the Brahmacharya.
Brahma marriage holds the supreme position of the eight types of Hindu matrimony.
When the parents of a boy seek a suitable bride, they consider her family background, and the girl's father would ensure that his daughter's prospective groom is a scholar, one who is well-versed in the Vedas.
[4] The Brahma marriage[5] is most common type of arranged marriage nowadays, wherein the father of a girl (bride) marries her to a man (groom) of good conduct.