At dawn over the Indus, a civilisation took shape in stone and water. By 2500 to 1900 BCE, cities such as Mohenjo-daro, Harappa, Dholavira, Ganweriwala, and Rakhigarhi were using standardised weights, steatite seals, a written script, and public works, while towns and villages fed an agro-pastoral economy around them.

Long before the modern republic, people had reached the subcontinent from Africa no later than 55,000 years ago, and settled life appeared on the western margins of the Indus basin after 7000 BCE at Mehrgarh in Balochistan. That long occupation made India highly diverse, and by 1200 BCE an archaic Sanskrit had diffused from the northwest, carrying the hymns of the Rig Veda and the early dawnings of Hinduism.

By 400 BCE, caste had emerged within Hindu society, while Buddhism and Jainism rose with a challenge to inherited rank, and the Maurya Empire briefly tied much of the subcontinent together. Ashoka, after the Kalinga War, turned to Buddhism and sent his edicts across South Asia, while the Gupta Empire later built a model of administration and taxation in the Ganges Plain and left a flowering of art, literature, and science.

South India followed a different path, with the Cheras, Cholas, Pandyas, and later the Pallavas shaping the Tamil world. Between 200 BCE and 200 CE, the south traded widely, and by the 6th century the Bhakti movement was taking root. From there, Indian scripts and religious cultures travelled into Southeast Asia, reaching lands that are now Myanmar, Thailand, Cambodia, Vietnam, Malaysia, and Indonesia.

From the 13th century, Hindustan became part of a wider Islamic world through the Delhi Sultanate, which repulsed Mongol raiders and drew soldiers, mystics, traders, and artisans into a syncretic north. In the south, Vijayanagara built a long-lasting Hindu composite culture. Then the Mughal Empire under Akbar brought centralised rule, economic expansion, and a rich architectural legacy that endured through the 17th century.

By 1765, the English East India Company had taken Bengal, and by the 1820s it had subdued most of India, turning the land into a colonial economy. After the 1857 Rebellion, Crown rule began in 1858 under British government control, with railways, canals, and the telegraph arriving alongside new schools and public life. The Indian National Congress was founded in 1885, and after 1920 Mahatma Gandhi made nonviolent resistance the movement’s engine.

In 1947, India won independence, but Partition split the subcontinent into India and Pakistan and brought immense loss of life and migration. Jawaharlal Nehru became prime minister on 15 August 1947, and on 26 January 1950 the Constitution made India a secular, democratic republic. Untouchability was abolished, Hindi became the official language of the federal government, and English remained an associate official language.