Gotra

In Hindu society, the term Gotra means clan. It broadly refers to people who are descendants in an unbroken male line from a common male ancestor. Panini defines gotra for grammatical purposes as apatyam pautraprabhrti gotram (IV. 1. 162), which means "the word gotra denotes the progeny (of a sage) beginning with the son's son". When a person says "I am Kashypasa-gotra", he means that he traces his descent from the ancient sage Kashyapa by unbroken male descent. According to the Baudhâyanas'rauta-sûtra Vishvâmitra, Jamadagni, Bharadvâja, Gautama, Atri, Vashista, Kashyapa and Agasthya are 8 sages; the progeny of these eight sages is declared to be gotras. This enumeration of eight primary gotras seems to have been known to PâNini. The offspring (apatya) of these eight are gotras and others than these are called ' gotrâvayava '.

There are 49 established Hindu gotras. All members of a particular gotra are believed to possess certain common characteristics by way of nature or profession. Many theories have been propounded to explain this system. According to the brahminical theory, the Brahmins are the direct descendants of seven or eight sages who are believed to be the mind-born sons of Brahma. They are Gautama, Bharadvaja, Vishvamitra, Jamadagni, Vashista, Kashyapa and Atri. To this list, Agasthya is also sometimes added. These eight sages are called gotrakarins from whom all the 49 gotras (especially of the Brahmins) have evolved. For instance, from Atri sprang the Atreya and Gavisthiras gotras.

A gotra must be distinguished from a kula. A kula is a set of people following similar cultural rituals, often worshiping the same divinity (the Kula-Devata, god of the clan). Kula does not relate to lineage or caste. In fact, it is possible to change one's kula, based on one's faith or Iṣṭa-devatā.

It is common practice in preparation for Hindu marriage to inquire about the kula-gotra (meaning clan lineage) of the bride and groom before approving the marriage. In almost all Hindu families, marriage within the same gotra is prohibited, since people with same gotra are considered to be siblings. But marriage within the jati is allowed and even preferred.

Not only Brahmins, several other castes also follow them in marriages. For example, Baniyas and Rajputs follow the Gotra system.

In a court case "Madhavrao vs Raghavendrarao" which involved a Deshastha Brahmin couple, the German scholar Max Mueller's definition of gotra as descending from eight sages and then branching out to several families was thrown out by reputed judges of a Bombay High Court. The court called the idea of Brahmin families descending from an unbroken line of common ancestors as indicated by the names of their respective gotras impossible to accept. The court consulted relevant Hindu texts and stressed the need for Hindu society and law to keep up with the times emphasizing that notions of good social behavior and the general ideology of the Hindu society had changed. The court also said that the mass of material in the Hindu texts is so vast and full of contradictions that it is almost an impossible task to reduce it to order and coherence.