Marriage in India is far more than a personal milestone; it is a social institution shaped by religion, kinship rules, economic logic, and centuries of custom. Most of us grow up assuming there is one “normal” way to get married: one man, one woman, one ceremony, one household. But population studies and anthropology paint a much richer picture. Across the country’s plains, hills, deserts, and forests, communities have evolved very different marital arrangements, from fraternal polyandry in the Nilgiris to widow remarriage customs in Haryana. Looking at these forms side by side helps us understand how marriage adapts to demography, property, and survival.
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Why studying types of marriage matters
Marriage is one of the building blocks of population studies because it influences fertility, household formation, migration, and inheritance. The age, type, and stability of marital unions directly shape the size and structure of families. A society that practices fraternal polyandry, for example, will look very different on paper from one that practices monogamy, even if both have the same total population. Sociologists classify marriages mainly by the number of spouses involved and the kinship rules that decide who can marry whom. The most commonly discussed forms, especially in Indian textbooks, include monogamy, polygamy (with its sub-types polygyny and polyandry), levirate, and sororate.
Monogamy: The dominant form
Monogamy is a marital arrangement in which one person is married to one spouse at a time. It is the legally recognised and socially preferred form across most communities in India today. According to the Hindu Marriage Act of 1955, a Hindu, Buddhist, Jain, or Sikh cannot marry again while a previous spouse is still living. Similar restrictions exist under the Indian Christian Marriage Act, 1872, and the Parsi Marriage and Divorce Act, 1936.
Straight monogamy and serial monogamy
Sociologists usually distinguish two kinds of monogamy. Straight monogamy means a person marries only once in a lifetime; remarriage is not permitted even after the spouse’s death or divorce. Serial monogamy permits remarriage after the death of the partner or after a legal divorce, but only one spouse at a time. Most modern Indian marriages fall into the second category, especially in urban areas where divorce and remarriage are increasingly accepted.
Monogamy is often described as the most stable form because it encourages exclusive commitment, clearer inheritance, and equal status for both partners. Many tribal communities such as the Kondh, Santhal, and Oraon have also traditionally been monogamous, showing that this is not just a “modern” or “urban” preference.
Polygamy: Marriage with multiple spouses
Polygamy is the umbrella term for any marriage involving more than one spouse simultaneously. It is further divided into polygyny (one man, multiple wives) and polyandry (one woman, multiple husbands). Both forms have existed in India historically, though they are now rare.
Polygyny
Polygyny is the more common of the two. Historically, it was practised by kings, landlords, and wealthy families as a marker of status, but it also occurred in tribal contexts. Polygyny is documented among the Naga, Gond, Baiga, Lushai, Juang, and Kondh tribes, and it survives in some Muslim communities under personal law, which permits a man to have up to four wives at the same time.
The reasons for polygyny vary. Sometimes it reflected an imbalance in the sex ratio, where women outnumbered marriageable men. Sometimes it was tied to labour requirements, as more wives and children meant more hands for farming and household work. In other cases, it was a marker of wealth and prestige, particularly among tribal chiefs and feudal elites.
Polygyny itself has two sub-types. Sororal polygyny is when the multiple wives are sisters, a practice closely related to the sororate (discussed below). Non-sororal polygyny is when the wives are unrelated to one another.
Today, polygyny is legally prohibited for Hindus, Christians, and Parsis. Even within communities where it is permitted, it has declined sharply. Data from National Family Health Survey-5 (NFHS-5, 2019-21) shows that polygynous marriages have fallen from 1.9% in NFHS-3 (2005-06) to about 1.4%, reflecting wider socio-economic change and changing attitudes towards women’s rights.
Polyandry and the Toda tribe
Polyandry, where one woman has multiple husbands at the same time, is comparatively rare worldwide. According to anthropologists, the Nilgiri Hills and parts of the Himalayas are among the few regions on earth where polyandry has been documented in a sustained way.
The classic Indian example is the Toda tribe of the Nilgiris in Tamil Nadu. The Todas are a small pastoral community whose economy traditionally revolved around buffalo herding and dairy. They practised fraternal polyandry, also called adelphic polyandry, in which a woman married the eldest brother of a family and automatically became the wife of his younger brothers as well. The eldest brother was usually considered the social father of the first child, the second brother of the next, and so on, even though biological paternity was not strictly tracked.
Why did the Todas adopt polyandry? Anthropologists point to several reasons. A skewed sex ratio, partly linked to historical female infanticide, meant fewer women were available for marriage. Polyandry also kept family property, especially buffalo herds and grazing land, undivided across brothers, since they shared one household instead of forming separate ones. The practice has now declined sharply; most contemporary Toda marriages are monogamous.
Polyandry has also been recorded in the Jaunsar-Bawar region of Uttarakhand, parts of Kinnaur in Himachal Pradesh, and historically among the Nanjanad Vellala of Travancore. Interestingly, researchers have found a resurgence of fraternal polyandry in parts of rural Punjab and Haryana, driven not by tradition but by economic pressures like land fragmentation and skewed sex ratios.
Levirate marriage: The Karewa tradition
Levirate is a form of marriage in which a widow marries her deceased husband’s brother, usually the younger one. The word comes from the Latin levir, meaning husband’s brother. In some versions, the younger brother could even exercise certain rights over the elder brother’s wife during the elder brother’s lifetime.
In India, the best-known example is the Ahir community of Haryana, where the custom is locally called karewa or chadar andazi. The ritual was simple and stripped of elaborate ceremony: the new husband would symbolically place a white sheet (chadar) over the widow’s head, after which she was considered his wife. Similar customs were also reported among certain Jat and Gujar communities of Uttar Pradesh and parts of Rajasthan.
Levirate served several functions in agrarian society. First, it allowed widow remarriage in a culture that otherwise stigmatised it. Second, it kept land and family property within the same household, preventing fragmentation of small holdings. Third, it provided social and economic security for the widow and her children, who remained within familiar kin. Finally, it strengthened bonds between brothers and reinforced family solidarity.
Levirate has declined significantly due to legal reforms like the Hindu Widows’ Remarriage Act of 1856 and changing attitudes towards widows, but echoes of the practice still exist in parts of north and central India, sometimes under different names like nata among certain Rajput clans or reet in Himachal Pradesh.
Sororate marriage: Sisters as spouses
Sororate is the mirror image of levirate. The word comes from the Latin soror, meaning sister. In a sororate marriage, a man marries the sister of his wife, either after the wife dies or, in some cases, while she is still alive (in which case it overlaps with sororal polygyny). Sometimes a man may also marry his wife’s sister if his first wife is unable to bear children.
This form is best documented among the Naga tribes of Northeast India, the Gonds of Central India, and the Baigas of Madhya Pradesh. Among these communities, marriage typically involved a high bride price, which created a strong incentive for sororate. If the bride died young or proved infertile, her family was expected to “compensate” the groom by offering another daughter, usually a younger sister. This way the family alliance and the bride price were preserved without renegotiation.
Among the Gonds, there is an interesting custom called “dudhlautawa”, literally meaning “the return of milk”, which captures this idea of restoring balance between two families. The Gonds are well-documented to practise both sororate and levirate, alongside cross-cousin marriage.
From the woman’s perspective, sororate often meant entering a household where she already knew her sister’s children. This could ease the adjustment and provide continuity of care, especially when young children were involved. From the community’s perspective, it preserved kinship ties, reduced conflict over property, and avoided the social complications of arranging a new alliance.
How these forms fit into a bigger picture
If we step back, we can see that all these marriage types are responses to similar pressures: scarcity of partners, the need to keep property intact, the value placed on alliances between families, and the welfare of widows and children. Monogamy spreads property and parenthood across many households. Polygyny concentrates them under one man. Polyandry concentrates them under one woman. Levirate and sororate are corrective mechanisms that step in when a spouse dies or proves unable to fulfil expected roles.
Modern Indian law leans firmly towards monogamy, with personal laws and constitutional principles emphasising equality between spouses. But population data, ethnographic studies, and field research consistently show that older forms have not vanished completely. They survive in pockets, get reinterpreted under economic pressure, and sometimes resurface in unexpected places, as the recent reports of wife-sharing in parts of Haryana and Punjab remind us.
For students of population studies, the lesson is that marriage is never just a private matter. It is shaped by, and in turn shapes, sex ratios, fertility, land tenure, gender relations, and migration. Understanding the different types of marriage helps us read these signals more accurately.
What do you think? If marriage practices respond so closely to sex ratios, land ownership, and economic stress, what does the slow rise of fraternal polyandry in parts of rural Punjab and Haryana tell us about the future of marriage in India? And should the law treat these emerging arrangements as crimes, as cultural adaptations, or as warning signs about deeper social problems?
References
- https://en.wikipedia.org/wiki/Polyandry_in_India
- https://legislative.gov.in/sites/default/files/A1955-25.pdf
- https://main.mohfw.gov.in/sites/default/files/NFHS-5_Phase-II_0.pdf
- https://en.wikipedia.org/wiki/Toda_people
- https://www.bbc.com/news/world-asia-india-39820156
- https://www.indiacode.nic.in/handle/123456789/2381
- https://ebooks.inflibnet.ac.in/antp05/chapter/kinship-familyand-marriage-among-the-indian-tribes/
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