Jyotiba Phule, a social reformer and activist from Maharashtra, is considered the pioneer of the anti-caste movement in India. He actively campaigned against the caste system, advocated for the rights of the oppressed castes, and founded the Satyashodhak Samaj (Truth-Seeker's Society) to promote social equality.

The Dalit Panthers Movement, founded in 1972, aimed to combat caste-based discrimination and oppression faced by Dalits (formerly known as untouchables). The movement sought to raise awareness about Dalit rights, challenge the caste system, and promote social justice.

The 15th Amendment to the Indian Constitution, enacted in 1955, abolished untouchability and prohibited its practice in any form. It declared untouchability as an offense punishable by law and aimed to promote equality and social justice for all citizens.

Pratibha Patil, a prominent Indian politician, became the first Dalit woman to hold the office of the President of India. She served as the 12th President from 2007 to 2012, making history as the first woman and the first Dalit to occupy the highest constitutional position in the country.

Casteism refers to the practice of assigning social status, privileges, and opportunities based on one's birth into a particular caste. It is a form of social stratification that has historically prevailed in India and other parts of South Asia, leading to discrimination and inequality among different caste groups.

The Bhakti Movement, a religious and social movement that emerged in India during the medieval period, emphasized devotion and love for God as a means to achieve spiritual liberation. It also played a significant role in promoting equality and social justice for Dalits by challenging the caste-based hierarchy and advocating for the dignity of all individuals.

Caste Resistance refers to the process of challenging and resisting caste-based discrimination and oppression. It involves various forms of activism, social movements, and individual actions aimed at dismantling the caste system and promoting equality and social justice for all.

Article 15 of the Indian Constitution prohibits discrimination on the grounds of caste, religion, race, sex, or place of birth. It guarantees equality before the law and equal access to public facilities and opportunities for all citizens, irrespective of their caste or social background.

Kanshi Ram, a prominent Dalit leader and politician, founded the Bahujan Samaj Party (BSP) in 1984. The BSP aims to represent the interests of Dalits, Bahujans (the majority of the population), and other marginalized communities in India. It has played a significant role in Indian politics, particularly in the state of Uttar Pradesh.

The Mandal Commission, officially known as the Second Backward Classes Commission, was established in 1979 to examine the social, educational, and economic conditions of Other Backward Classes (OBCs) in India. Its primary objective was to recommend measures for the social and educational upliftment of OBCs, including reservations in education and government jobs.

The Naxalite Movement, also known as the Naxalite-Maoist Insurgency, is a left-wing extremist movement in India. It originated in the late 1960s and aims to overthrow the existing social and economic order and establish a communist society. The movement has a strong presence in rural areas and has been involved in armed conflicts with the Indian government.

Classism refers to the practice of assigning social status and privileges based on one's occupation or profession. It is a form of social stratification that divides society into different classes, with varying levels of wealth, power, and prestige. Classism can lead to discrimination and inequality among different social classes.

The Chipko Movement, a nonviolent protest movement, emerged in the 1970s in the Himalayan region of India. It aimed to protect forests and prevent deforestation by embracing trees and forming human chains around them. The movement successfully raised awareness about the importance of forest conservation and led to the implementation of stricter environmental regulations.

The Poona Pact was an agreement signed in 1932 between Mahatma Gandhi and B.R. Ambedkar, a Dalit leader, to resolve the conflict between Hindus and Muslims over the representation of minorities in the Indian legislature. The pact granted separate electorates for Muslims and reserved seats for Dalits in the legislature, addressing their concerns about fair representation.