Vaishya in the context of "Bhagavad Gita"

Varna (Sanskrit: वर्ण, romanized: varṇa, Hindi pronunciation: ['ʋəɾɳə]), in the context of Hinduism, refers to a social class within a hierarchical traditional Hindu society. The ideology of varna is epitomized in texts like Manusmriti, which describes and ranks four varnas, and prescribes their occupations, requirements and duties, or Dharma.

• Brahmins: Vedic scholars, priests or teachers.
• Kshatriyas: Rulers, administrators or warriors.
• Vaishyas: Agriculturalists, farmers or merchants.
• Shudras: Artisans, labourers or servants.

This quadruple division is a form of social stratification, quite different from the more nuanced system of Jātis, which correspond to the term "caste".

In India, social classification based on caste has its origin in ancient times. It was transformed by various ruling elites in medieval, early-modern, and modern India, especially in the aftermath of the collapse of the Mughal Empire and the establishment of the British Raj. Caste is traditionally associated with Hinduism, but is more pervasive in extent: an estimated 98% of contemporary Indians, including Hindus, Muslims, Christians, Sikhs, Buddhists, and Jains, identify with a caste.

Beginning in ancient India, the caste system was originally centered around varna, with Brahmins (priests) and, to a lesser extent, Kshatriyas (rulers and warriors) serving as the elite classes, followed by Vaishyas (traders and merchants) and finally Shudras (labourers). Outside of this system are the oppressed, marginalised, and persecuted Dalits (also known as "Untouchables") and Adivasis (tribals). Over time, the system became increasingly rigid, and the emergence of jati led to further entrenchment, introducing thousands of new castes and sub-castes. With the arrival of Islamic rule, caste-like distinctions were formulated in certain Muslim communities, primarily in North India. The British Raj furthered the system, through census classifications and preferential treatment to Christians and people belonging to certain castes. Social unrest during the 1920s led to a change in this policy towards affirmative action.

Sahadeva (Sanskrit: सहदेव, romanized: Sahadeva, lit. 'one with the gods') was the youngest of the five Pandava brothers in the ancient Indian epic, the Mahabharata. He and his twin brother Nakula were the sons of Madri, one of the wives of the Pandava patriarch Pandu, and Ashvini Kumaras, the divine twin physicians of the gods, whom she invoked to beget her sons due to Pandu's inability to progenate. Sahadeva is renowned for his wisdom, knowledge of astrology, and skill in swordsmanship.

Sahadeva was married to Draupadi, as were his four brothers. He was also married to Vijaya of Madra kingdom. He had two sons, Shrutasena and Suhotra, from his two wives respectively. Sahadeva played a crucial role during the Rajasuya of Yudhishthira, where he conquered the kings of the South. After Yudhishthira lost all of his possessions to Duryodhana in the game of dice, Sahadeva vowed to slay Shakuni, Duryodhana's maternal uncle, who had used loaded dice to unfairly win the game. Afterwards, the Pandavas and Draupadi were exiled for thirteen years, with the last year being a period of hiding called as Agyaata Vaasa. During the hiding, Sahadeva disguised himself as a Vaishya named Tantripala and worked as a cowherd in the kingdom of Virata. Sahadeva was a skilled warrior who fought in the Kurukshetra War between the Pandavas and their cousins, the Kauravas. On the 18th day of the war, he slayed Shakuni. At the end of the epic, during the Pandavas' journey in the Himalayas to enter Svarga, Sahadeva was the second to fall, following Draupadi, due to his excessive pride in his wisdom.

Brahmin (/ˈbrɑːmɪn/; Sanskrit: ब्राह्मण, romanized: brāhmaṇa) is a varna (theoretical social classes) within Hindu society. The other three varnas are the Kshatriya (rulers and warriors), Vaishya (traders, merchants, and farmers), and Shudra (labourers). The traditional occupation of Brahmins is that of priesthood (purohit, pandit, or pujari) at Hindu temples or at socio-religious ceremonies, and the performing of rite of passage rituals, such as solemnising a wedding with hymns and prayers.

Traditionally, Brahmins are accorded the supreme ritual status of the four social classes, and they also served as spiritual teachers (guru or acharya). In practice, Indian texts suggest that some Brahmins historically also became agriculturalists, warriors, traders, and had also held other occupations in the Indian subcontinent. Within the jati (caste) system, Brahmins similarly occupy the highest position, though that is complicated by strict stratification even among Brahmins and historical attempts by other castes and sub-castes to challenge Brahminical dominance.

Kshatriya (Sanskrit: क्षत्रिय, romanized: Kṣatriya) (from Sanskrit kṣatra, "rule, authority"; also called Rajanya) is one of the four varnas (social orders) of Hindu society and is associated with the warrior aristocracy. The Sanskrit term kṣatriyaḥ is used in the context of later Vedic society wherein members were organised into four classes: brahmin, kshatriya, vaishya, and shudra.

Upanayana (Sanskrit: उपनयन, romanized: upanayana, lit. 'initiation') is a Hindu educational sacrament, one of the traditional saṃskāras or rites of passage that marked the acceptance of a student by a preceptor, such as a guru or acharya, and an individual's initiation into a school in Hinduism. Some traditions consider the ceremony as a spiritual rebirth for the child or future dvija, twice born. It signifies the acquisition of the knowledge of and the start of a new and disciplined life as a brahmāchārya. The Upanayanam ceremony is arguably the most important rite for Brāhmaṇa, Kṣatriya, and Vaiśya males, ensuring his rights with responsibilities and signifying his advent into adulthood.

The tradition is widely discussed in ancient Samskṛta texts of Hinduism and varies regionally. The sacred thread or yajñopavīta (also referred to as Janeu, Jandhyam, Pūṇūl, Muñja and Janivara Yonya) has become one of the most important identifiers of the Upanayana ceremony in contemporary times, however this was not always the case. Typically, this ceremony should be performed before the advent of adulthood.