India

The World’s Most Populous Country and Its Oldest Continuous Civilisation

India overtook China as the world’s most populous country in 2023 — a demographic milestone that reshapes global economic geography for the 21st century. With roughly 1.44 billion people in 2024, India accounts for nearly 18% of humanity and is growing while most developed nations shrink. But sheer numbers tell only a fraction of the story. India is also a civilisation that has been continuously producing literature, mathematics, philosophy, religion, art, and political thought for more than 4,500 years — a duration unmatched by any other living culture.

The country operates at a scale and density of variation that is difficult for visitors to fully absorb. It is home to four major religions that originated on its soil (Hinduism, Buddhism, Jainism, Sikhism), and sizeable communities of the three Abrahamic faiths (one of the world’s largest Muslim populations, the world’s oldest Jewish diaspora, and ancient Christian traditions dating to the 1st century AD). It has 22 officially recognised languages plus hundreds of others; its Constitution is the world’s longest; its railway system is the world’s fourth-largest; its diaspora is one of the most widely distributed and increasingly influential of any nationality.

Modern India, independent only since 1947, is navigating the tension between this civilisational depth and its ambitions as an emerging economic and geopolitical power. The country’s trajectory in the next decade — demographic, economic, technological, religious, and political — will shape the 21st century in ways few other national stories will.

Evening aarti ceremony at the ghats of Varanasi with flickering lamps, pilgrims bathing in the Ganges, and boats on the river

A Brief History

The Ancient Civilisations

Indian civilisation begins with the Indus Valley Civilisation (roughly 3300-1300 BC) — a Bronze Age urban culture in modern-day Pakistan and northwest India that was contemporary with ancient Egypt and Mesopotamia. Its cities (Mohenjo-daro, Harappa) had sophisticated urban planning, a still-undeciphered writing system, and trade networks extending to the Persian Gulf.

The Vedic period (1500-500 BC) produced the Rigveda — one of the oldest religious texts still in use — and the foundations of Hindu religious thought. The Maurya Empire (322-185 BC), especially under Ashoka the Great, unified most of the subcontinent and spread Buddhism across Asia. The Gupta Empire (320-550 AD) is considered the classical age of Indian civilisation, producing advances in mathematics (including the concept of zero), astronomy, medicine, and Sanskrit literature.

The Islamic Period

Islamic rule in India began with the Ghurid conquest in the late 12th century and reached its peak under the Mughal Empire (1526-1857). The Mughals were central Asian Muslim rulers of Turkic-Mongol descent who patronised an extraordinary cultural synthesis — Persian-language literature, Indo-Islamic architecture (including the Taj Mahal), miniature painting, and the development of Urdu (a Hindi-Persian hybrid). The empire reached its peak under Akbar (1556-1605), whose policies of religious tolerance remain a reference point in Indian political debate.

British India

The British East India Company gradually displaced the Mughals from political power through the 18th century; after the 1857 Indian Rebellion (the “First War of Independence” or “Sepoy Mutiny”), the British Crown took direct control, establishing the British Raj (1858-1947). British rule transformed the subcontinent’s economy (often destructively — the 1770 Bengal famine killed an estimated 10 million; later famines are now estimated to have killed tens of millions more), built the railway and postal infrastructure that modern India inherited, and created the civil service system that still anchors the Indian state.

Independence and Partition

Mahatma Gandhi’s non-violent independence movement (1919-1947) is one of the foundational stories of the 20th century. Independence came on 15 August 1947 but was accompanied by Partition — the division of British India into the secular-majority-Hindu Republic of India and the Muslim-majority state of Pakistan. The partition triggered one of the largest mass migrations in human history (roughly 14-18 million people displaced) and communal violence that killed an estimated 1-2 million people.

The Modern Republic

Jawaharlal Nehru, India’s first Prime Minister, established the country’s democratic, secular, socialist-leaning foundational framework. India remained officially non-aligned during the Cold War and pursued state-led development until the 1991 economic liberalisation under Prime Minister P.V. Narasimha Rao and Finance Minister Manmohan Singh transformed the country into a more market-oriented economy.

Contemporary India

India’s current government under Prime Minister Narendra Modi and the Bharatiya Janata Party (BJP), in power since 2014, has pursued Hindu nationalist cultural politics alongside aggressive economic reform and diplomatic realignment. India has emerged as a major geopolitical actor — courted by the US, Russia, and China simultaneously, hosting the G20 in 2023, and expected to become the world’s third-largest economy within the decade.

Geography and Climate

India covers 3,287,263 km² — the seventh-largest country in the world by area. The country is roughly diamond-shaped, stretching from the Himalayan mountain barrier in the north to the tropical tip at Kanyakumari (Cape Comorin) in the south, and from the Thar Desert bordering Pakistan in the west to the rainforests of the Northeast states bordering Myanmar in the east.

Regional Geography

• The Himalayan North — Jammu and Kashmir, Himachal Pradesh, Uttarakhand, Sikkim, Arunachal Pradesh. Mountain kingdoms, Buddhist monasteries, trekking country. Kanchenjunga at 8,586 metres is India’s highest peak.
• The Ganges Plain — Uttar Pradesh, Bihar, West Bengal. The demographic heart of India; the Ganges river system supports roughly 400 million people.
• Rajasthan and the Northwest — desert kingdoms (Jaipur, Udaipur, Jodhpur, Jaisalmer); camels, forts, and princely palaces.
• The Deccan Plateau — Central India. Maharashtra, Karnataka, Andhra Pradesh, Telangana. Moderate highlands, major cities (Mumbai, Bangalore, Hyderabad).
• The South — Tamil Nadu, Kerala, Karnataka, Puducherry. Tropical, with distinct Dravidian cultures, temple architecture, and cuisine.
• The Northeast — Assam, Meghalaya, Manipur, Nagaland, Mizoram, Tripura, Arunachal Pradesh. Distinct cultures closer to Southeast Asia than South Asia; Christian-majority in several states.

Climate

India experiences three main seasons shaped by the monsoon:

• Winter (October-February) — dry, cool, the best travel window. Daytime 20-30°C across most of the country; the Himalayan foothills and northern plains can dip below 10°C at night.
• Summer (March-June) — extremely hot. Delhi, Rajasthan, and the Gangetic plain regularly exceed 45°C. Southern India is warm but not punishing.
• Monsoon (June-September) — the lifeblood of Indian agriculture. The southwest monsoon brings heavy rainfall across most of the country, peaking in June-August.

Culture, Language and Religion

Religion

India is officially secular but overwhelmingly religious in practice:

• Hinduism (~79% of the population) — India is the religion’s heartland. Hinduism is exceptionally varied — there is no single Hindu scripture equivalent to the Bible or Quran, and practices range from village folk traditions to abstract Vedanta philosophy.
• Islam (~14%) — India has one of the world’s largest Muslim populations (over 200 million), larger than any Muslim-majority country except Indonesia.
• Christianity (~2.3%), Sikhism (~1.7%), Buddhism (~0.7%), Jainism (~0.4%), smaller communities of Zoroastrians (Parsis) and Jews (among the world’s oldest diasporas, dating to the first century AD).

Religious tensions — particularly Hindu-Muslim but also tensions involving Sikhs, Christians, and tribal peoples — have punctuated Indian history. The country’s constitutional commitment to secularism remains a live political issue.

Language

India has 22 officially recognised languages in the Eighth Schedule of the Constitution, and hundreds of others. The two most widely spoken:

• Hindi (around 530 million speakers including L2) — the official language of the Union government and dominant across the northern plains.
• English — associate official language, widely used in business, law, higher education, and inter-state communication. India has the world’s second-largest English-speaking population after the United States.

Major regional languages with their own literary traditions include Bengali, Tamil, Telugu, Marathi, Gujarati, Kannada, Malayalam, Punjabi, Odia, and Urdu. Linguistic diversity is one of India’s defining cultural features — a Tamil speaker and a Punjabi speaker will usually communicate in English or Hindi rather than in either’s native tongue.

The Caste System

India’s caste system (varna and jati) is one of the oldest and most complex social stratification systems in the world. Constitutional abolition of caste discrimination (1950) has not eliminated the system’s influence on marriage, employment, and politics. Scheduled Castes (formerly “Untouchables”, now often self-identified as Dalits) and Scheduled Tribes together constitute around 25% of the population and have legally protected reservations in government jobs and education.

Bollywood

The Hindi-language film industry based in Mumbai produces more films annually than Hollywood, and Indian cinema collectively (including Tamil, Telugu, Malayalam, Bengali, and Punjabi industries) makes India the world’s largest film producer by number of films. Indian popular music — from classical Hindustani and Carnatic traditions to film soundtracks to contemporary pop — has a global reach through the diaspora.

The Economy

India is the world’s fifth-largest economy by nominal GDP (~$4.1 trillion in 2024) and the third-largest by purchasing power parity. It’s projected to become the world’s third-largest economy by nominal GDP by 2027-2028, overtaking Germany and Japan.

Key Sectors

• Services — dominant at roughly 55% of GDP. India is the world’s largest provider of IT services and business process outsourcing, with the sector earning over $300 billion annually from exports. Major companies: TCS, Infosys, Wipro, HCL.
• Agriculture — still employs around 45% of the labour force but generates only about 15% of GDP, reflecting both rural employment needs and productivity gaps. India is the world’s largest producer of milk, pulses, spices, jute, and cotton, and the second-largest producer of rice and wheat.
• Manufacturing — under-performing relative to potential. The “Make in India” initiative and the 2023-2024 production-linked incentive schemes aim to raise manufacturing’s share of GDP. Apple’s Foxconn partner factories in Tamil Nadu and Karnataka have made India a growing iPhone production base.
• Pharmaceuticals — India produces around 20% of the world’s generic medicines by volume. Indian pharma (Sun, Cipla, Dr. Reddy’s) is a critical supplier to Africa, the US, and Europe.

Challenges

India’s economic transformation is real but uneven. Income inequality remains high; the formal manufacturing employment share has stagnated for decades. Infrastructure (roads, ports, electricity) has improved dramatically since 2014 but still lags peer emerging markets. Female labour force participation at around 25% is among the world’s lowest, a cultural and structural issue that constrains growth.

Cuisine

Indian cuisine is one of the world’s most varied culinary traditions — far more regional than “curry house” menus suggest. A typical Indian restaurant in the West reflects mostly Punjabi and Awadhi cooking traditions, missing the entire southern, eastern, and Himalayan repertoires.

Regional Traditions

• North Indian (Punjab, Haryana, UP, Delhi) — tandoor-baked breads (naan, roti), rich cream-based curries (butter chicken, dal makhani, paneer dishes), biryani from Hyderabad and Lucknow. Wheat-dominant.
• South Indian (Tamil Nadu, Kerala, Karnataka, Andhra Pradesh) — rice-dominant. Dosas (fermented rice-lentil crepes), idli, sambar, coconut-based curries, banana-leaf thalis. Lighter, often vegetarian, with a distinct spicing profile from northern cuisines.
• Bengali and Eastern — fish-dominant (Bengali cuisine is built around the hilsa, mustard, and poppy seeds), distinctive rice varieties, sweets (roshogolla, mishti doi), mustard oil base.
• Gujarati — mostly vegetarian, with a distinctive sweet-and-savoury balance in even savoury dishes. Thalis with multiple small dishes, dhokla, khandvi, kathiawadi.
• Rajasthani — adapted to desert conditions. Dal baati churma, ker sangri (desert vegetables), millet-based breads. Less reliance on fresh produce.
• Goan — Indo-Portuguese fusion. Vindaloo (the Portuguese “vinha d’alhos” indigenised), xacuti, bebinca.

Street Food

India has one of the world’s great street food cultures. Chaat (tangy-sweet-spicy savoury snacks), vada pav (Mumbai’s potato-burger), pav bhaji, pani puri (golgappa), dosas from roadside carts, kebabs from Old Delhi. Food-safety precautions matter — stick to busy vendors with high turnover and freshly cooked items.

The Vegetarian Tradition

India has the world’s largest vegetarian population — roughly 30-40% of Indians are vegetarian, a function of religious traditions (Hinduism, Jainism, some Sikh sects). This produces one of the world’s most developed vegetarian cuisines.

Chai and Coffee

Chai (sweetened spiced milk tea) is the universal Indian beverage, sold by millions of roadside stalls. South India has a strong coffee tradition — South Indian filter coffee (strong coffee with chicory, served with steamed milk in a stainless-steel tumbler-and-dabarah) is distinct from most other Indian beverages.

Nature and UNESCO Sites

India has 42 UNESCO World Heritage Sites, the sixth-highest count in the world. Highlights:

• Taj Mahal — Agra. The 17th-century Mughal mausoleum.
• Ellora Caves — Maharashtra. 34 rock-cut monasteries (Hindu, Buddhist, Jain) carved into a single volcanic cliff, 6th-10th centuries AD.
• Ajanta Caves — Maharashtra. 30 Buddhist rock-cut cave monasteries with murals dating from the 2nd century BC to 6th century AD.
• Red Fort Complex — Delhi. Mughal imperial palace-fortress.
• Humayun’s Tomb — Delhi. The 16th-century precursor to the Taj Mahal.
• Qutb Minar — Delhi. 73-metre minaret from the early Islamic period (1193).
• Khajuraho Group of Monuments — Madhya Pradesh. Temples covered in erotic sculpture, built by the Chandela dynasty.
• Hampi — Karnataka. Ruined capital of the Vijayanagara Empire.
• Mahabalipuram — Tamil Nadu. Pallava dynasty rock-cut temples on the Coromandel coast.
• Kaziranga National Park — Assam. Home to two-thirds of the world’s remaining one-horned rhinoceros.
• Great Himalayan National Park — Himachal Pradesh.
• Nanda Devi and Valley of Flowers National Parks — Uttarakhand.

National Parks and Wildlife

India has 106 national parks and hundreds of wildlife sanctuaries. Major destinations: Ranthambore (Rajasthan, tigers), Kanha and Bandhavgarh (Madhya Pradesh, tigers), Corbett (Uttarakhand, tigers), Periyar (Kerala, elephants and diverse ecosystems), the Sundarbans (West Bengal, Bengal tigers in mangroves).

Travel Guide: Practical Information

Entry

India requires visas for nearly all foreign visitors. The e-Visa system covers most major markets and can be applied for online 4-120 days before travel; tourist e-Visas are typically valid for 30 days, 1 year, or 5 years with multiple entries. Applications take 3-4 business days.

Best Seasons

• October-March — the ideal window for most of the country. The northern plains are pleasant, the south is warm but manageable.
• April-May — increasingly hot across the plains; Himalayan regions open up for trekking.
• June-September — monsoon season. The southwest monsoon makes Kerala and Goa particularly lush; Ladakh (in the Himalayan rain shadow) is ideal in this window; the Gangetic plain becomes humid and flood-prone.

Transport

• Domestic flights — essential for covering the country’s scale. IndiGo, Air India, SpiceJet, Vistara are the main carriers. Delhi-Mumbai is 2 hours; Delhi-Bangalore is 2.5 hours.
• Indian Railways — one of the world’s largest rail networks, with four million passengers daily. Overnight sleeper trains are a cultural experience; first-class AC compartments are comfortable; book well in advance via IRCTC or agents.
• Urban transit — Delhi, Mumbai, Bangalore, Chennai, Kolkata, and Hyderabad have metros of varying coverage. Ride-hailing (Uber, Ola) is available in most cities.
• Rental cars with driver — the standard mode for exploring specific regions (Rajasthan, Kerala, Himalayan foothills). Self-drive is not recommended for most visitors.

Budget

India is inexpensive by international standards — daily budgets of $30-$60 for mid-range travel (solid hotels, good restaurants, domestic flights) are comfortable. Luxury scales — the Taj Mahal Palace in Mumbai and Rambagh Palace in Jaipur command international prices. Tipping is 10-15% at mid/upper restaurants, Rs 100-200 for hotel porters, Rs 100-300 per day for guides.

Health and Safety

Food-borne illnesses are the most common visitor problem. Drink bottled or properly purified water, avoid ice of unknown origin, and favour busy restaurants with high turnover. Air pollution in Delhi, Kolkata, and parts of the Indo-Gangetic plain reaches hazardous levels in winter (October-February); travellers with respiratory conditions should check current AQI before visiting. Solo female travellers face harassment risks in some areas; the situation has improved but caution remains warranted; many female travellers choose group tours for peace of mind.

Surprising Facts

1. India has the world’s largest postal system — over 150,000 post offices, including one floating post office on Dal Lake in Srinagar and the world’s highest post office at Hikkim in Himachal Pradesh (4,440 metres altitude).⁶
2. The Indian rupee symbol ₹ was designed by D. Udaya Kumar and adopted in 2010, making India one of the few countries to develop a distinct currency symbol in the 21st century.⁶
3. Chess (chaturanga) was invented in India around the 6th century AD before travelling to Persia, the Arab world, and Europe.⁶
4. The Kumbh Mela religious pilgrimage — held in four cities in rotation every 12 years at each location — is the largest peaceful gathering of humans on earth, with the 2013 Allahabad event drawing an estimated 120 million pilgrims over 55 days.³
5. Sanskrit was considered the language of the gods in classical India and is the oldest member of the Indo-European language family; its grammar was formally codified by Panini around the 5th century BC in a treatise more rigorous than most modern linguistic analyses.⁶
6. India’s Aadhaar biometric ID system covers over 1.3 billion people — the world’s largest biometric identity database — and is now the infrastructure behind the country’s digital payments system (UPI), which processes more transactions monthly than Visa and Mastercard combined in India.³

Sources and References

See the list of cited sources in the page frontmatter — UNESCO, World Bank, Incredible India (Ministry of Tourism), Ministry of Statistics, Reserve Bank of India, Encyclopaedia Britannica, and the Archaeological Survey of India.