Religion in India in the context of "Hinduism in South Asia"

Islam is India's second-largest religion, with 14.2% of the country's population, or approximately 172.2 million people, identifying as adherents of Islam in a 2011 census. India has the third-largest number of Muslims in the world. Most of India's Muslims are Sunni, with Shia making up around 15% of the Muslim population.

Islam first spread in southern Indian communities along the Arab coastal trade routes in Gujarat and in Malabar Coast shortly after the religion emerged in the Arabian Peninsula. Later, Islam arrived in the northern inland of Indian subcontinent in the 7th century when the Arabs invaded and conquered Sindh. It arrived in Punjab and North India in the 12th century via the Ghaznavids and Ghurids conquest and has since become a part of India's religious and cultural heritage. The Barwada Mosque in Ghogha, Gujarat built before 623 CE, Cheraman Juma Mosque (629 CE) in Methala, Kerala and Palaiya Jumma Palli (or The Old Jumma Masjid, 628–630 CE) in Kilakarai, Tamil Nadu are three of the first mosques in India which were built by seafaring Arab merchants. According to the legend of Cheraman Perumals, the first Indian mosque was built in 624 CE at Kodungallur in present-day Kerala with the mandate of the last ruler (the Tajudeen Cheraman Perumal) of the Chera dynasty, who converted to Islam during the lifetime of the Islamic prophet Muhammad (c. 570–632). Similarly, Tamil Muslims on the eastern coasts also claim that they converted to Islam in Muhammad's lifetime. The local mosques date to the early 700s.

Indian culture is the heritage of social norms and technologies that originated in or are associated with the ethno-linguistically diverse nation of India, pertaining to the Indian subcontinent until 1947 and the Republic of India post-1947. The term also applies beyond India to countries and cultures whose histories are strongly connected to India by immigration, colonisation, or influence, particularly in South Asia and Southeast Asia. India's languages, religions, dance, music, architecture, food, and customs differ from place to place within the country.

Indian culture, often labelled as a combination of several cultures, has been influenced by a history that is several millennia old, beginning with the Indus Valley Civilisation and other early cultural areas. India has one of the oldest continuous cultural traditions in the world.

Christianity is India's third-most followed religion with 28 million adherents, who make up 2.3 percent of the population as of the 2011 census. Christianity is the largest religion in parts of Northeast India, specifically in Nagaland, Mizoram, and Meghalaya. It is also a significant religion in Manipur, which is 41 percent Christian.

Nearly two-thirds (65 percent) of India's Christians are found in South India, Goa, & Mumbai (Bombay). The oldest known Christian group in North India are the Hindustani-speaking Bettiah Christians of Bihar, formed in the early 1700s through a Capuchin mission and under the patronage of Rajas (kings) in the Moghal Empire. The Church of North India and the Church of South India are a United Protestant denomination; which resulted from the evangelism/ ecumenism of Anglicans, Calvinists, Methodists and other Protestant groups who flourished in colonial India. Consequently, these churches are part of the worldwide Anglican Communion, World Communion of Reformed Churches, and World Methodist Council. Along with native Christians, small numbers of mixed Eurasian peoples such as Anglo-Indian, Luso-Indian, Franco-Indian and Armenian Indian Christians also existed in the subcontinent. Also, there is the Khrista Bhakta movement, who are unbaptised followers of Christ and St Mary, mainly among the Shudras and Dalits.

Islam and Hinduism share some ritual practices, such as fasting and pilgrimage, but their views differ on various aspects. There are also hundreds of shared ritual spaces, called dargahs (literally, "doorway" or "threshold"), for Hindus and Muslims. These mark shrines for revered Muslim (frequently Sufi) leaders and are visited by both Muslims and Hindus. Their interaction has witnessed periods of cooperation and syncretism, and periods of religious discrimination, intolerance, and violence. As a religious minority in India, Muslims are part of Indian culture and have lived alongside Hindus for over 13 centuries.

Despite the long-expressed contention that the origins of Muslim-Hindu tensions can be largely attributed to 19th century British colonial rule in India, the religious identities of Islam and Hinduism and the divisions between them existed long beforehand. Ajay Verghese argues that the Hindu-Muslim conflict in India can be better understood by analyzing the historical relationship between the two communities. He contends that precolonial India was marked by a fluidity of religious identity and that religious boundaries were not always clear-cut. This led to a degree of intermingling between Muslims and Hindus, but also created conditions for tension and conflict.

Hinduism is the largest and most practised religion in India. About 79.8% of the country's population is Hindu. India is home to 94% of the global Hindu population, making it the largest homeland of Hindus worldwide. The vast majority of Indian Hindus belong to Vaishnavite, Shaivite, and Shakta denominations. India is one of the two Hindu-majority countries in the world along with Nepal (81.19%).