The Beginning of the caste system
The origins of India’s caste system have been explained through different lenses — religious-mystical theories, biological theories, and socio-historical theories.
1. Religious Theories
Religious explanations often describe how the four Varnas (broad caste categories) were created but rarely address the origins of sub-castes (Jatis) or the “untouchables.”
According to the Rig Veda, the ancient Hindu scripture, the cosmic being (Purusha) sacrificed himself to create human society. From different parts of his body emerged the four Varnas:
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Brahmins (priests and scholars) from his head
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Kshatriyas (warriors) from his arms
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Vaishyas (farmers and merchants) from his thighs
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Shudras (laborers) from his feet
The hierarchy was based on the perceived purity of the body part from which each Varna originated. Another religious account states that the Varnas came from the body of Brahma, the creator god.
2. Biological Theory
The biological theory suggests that all beings — living and non-living — possess three inherent qualities (gunas) in varying proportions:
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Sattva – wisdom, intelligence, honesty, goodness
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Rajas – passion, pride, valor, ambition
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Tamas – ignorance, laziness, lack of creativity
According to this theory:
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Brahmins possessed primarily Sattva qualities.
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Kshatriyas and Vaishyas were dominated by Rajas.
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Shudras had a predominance of Tamas.
Diet was also thought to influence these qualities. Brahmins and many Vaishyas followed a Sattvic diet — fruits, milk, honey, roots, and vegetables. Meat was generally considered Tamasic, though certain meats, such as deer, were classified as Rajasic and consumed by Kshatriyas. However, the theory has inconsistencies: Brahmins in some regions ate meat despite its Tamasic classification.
3. Socio-Historical Theory
The socio-historical theory traces the caste system to the arrival of the Aryans around 1500 BCE from South Europe and North Asia. Before their arrival, India was inhabited by diverse ethnic groups:
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Negrito – features similar to Africans
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Mongoloid – East Asian features
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Austroloid – similar to Aboriginal Australians
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Dravidian – Mediterranean origin, the largest group in pre-Aryan India
The Aryans primarily encountered Dravidians and Austroloids. They dismissed local cultures, conquered territories in northern India, and pushed indigenous communities to the south, forests, or mountains.
Among themselves, Aryans organized into three groups:
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Rajanyas (warriors), later called Kshatriyas
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Brahmins (priests), who eventually emerged as political leaders
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Vaishyas (farmers and craftsmen), who became landlords and traders
The local populations were subjugated, serving as laborers and craftsmen under Aryan dominance. Strict social and religious rules restricted priesthood, warfare, and commerce to Aryans. Over time, these rules solidified into a rigid caste structure.
The term Varna originally meant “color,” indicating that skin tone played a role in social ranking. In places like Maharashtra, the name is sometimes linked to the Mahar community — considered the original inhabitants and treated as outcasts due to their darker complexion.
The Shudras and the Outcastes
Shudras occupied the lowest Varna and included:
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Local people subdued by the Aryans
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Descendants of Aryans and locals
Many Hindu myths depict battles between light-skinned “noble” Aryans and dark-skinned demons or devils, possibly symbolic of conflicts between Aryans and indigenous peoples. These stories also mention marriages between Aryan heroes and demon women — perhaps reflecting historical intermixing.
As in many societies, professions were inherited. Over generations, families specializing in a trade formed communities (Jatis), with those in similar trades forming larger networks. This reinforced occupational segregation.
Foreign invaders like the Greeks, Huns, and Scythians were sometimes incorporated into the Kshatriya Varna. However, original Indian warrior and aristocratic groups predating the Aryans were largely excluded. Communities performing “clean” occupations were placed in the Shudra Varna, while those in “polluting” professions became untouchables.
Untouchability was enforced by strict rules of physical and even spatial separation, partly due to ancient beliefs about disease transmission through air as well as touch.