Gotra Exogamy

Gotra exogamy is the customary rule that a person should marry outside their own gotra. A gotra is traditionally understood as a patrilineal descent group whose members trace ancestry to a common male ancestor, actual or putative, and are therefore treated as kin.

How the rule operates

Gotra membership is generally traced through the male line, and children ordinarily acquire their father's gotra. Marriage within the same gotra is traditionally prohibited because its members are regarded as sharing common descent.

• In many patrilineal communities, a woman is associated with her father's gotra before marriage and is conventionally incorporated into her husband's lineage after marriage.
• The precise range of prohibited gotras varies across regions, castes and communities, so there is no single uniform practice among all Hindus.

Place within the wider marriage system

Gotra exogamy has often coexisted with caste endogamy: marriage is sought within the caste or sub-caste but outside the gotra. Some communities also observe restrictions based on lineage, clan, close kinship or village affiliation.

• Gotra should not be treated as identical to caste: caste defines a broader social group, while gotra denotes a claimed descent category.
• Gotra exogamy helps regulate marriage alliances and prevents unions between persons conventionally regarded as close agnatic kin.

Gender and legal significance

Because gotra is normally transmitted through men, the custom reflects the patrilineal organisation of descent and places women's social identity within natal and marital lineages. It can also become a means of regulating women's choice of spouse.

• The Hindu Marriage Act, 1955 does not make shared gotra an independent ground of invalidity.
• Under Section 5, statutory restrictions concern prohibited relationships and sapinda relationships, subject to recognised customary exceptions.