Regions of South Asia

Regions of South Asia
user:Serg!o · CC BY-SA 3.0 · source
Name	South Asian regions
Area km2	5131648
Population	1.9 billion
Countries	India, Pakistan, Bangladesh, Nepal, Sri Lanka, Bhutan, Maldives, Afghanistan (disputed inclusion)
Largest city	Mumbai

Regions of South Asia South Asia comprises a complex mosaic of territorial, cultural, linguistic, and geopolitical units centered on the Indian subcontinent, linking states such as India, Pakistan, Bangladesh, Nepal, Sri Lanka, Bhutan, Maldives, and sometimes Afghanistan. Scholarly and diplomatic treatments vary: cartographers, historians, and international organizations including the United Nations and South Asian Association for Regional Cooperation use different delimitations that intersect with colonial legacies like the British Raj and premodern empires such as the Mughal Empire and the Maurya Empire.

Definition and Scope

Definition debates hinge on whether South Asia is coterminous with the Indian subcontinent, which includes physiographic boundaries like the Himalayas, the Indus River, and the Ganges River basin, or whether it extends to island states such as the Maldives and Sri Lanka. International bodies such as the World Bank, International Monetary Fund, and the Asian Development Bank adopt operational definitions that affect datasets for United Nations Development Programme indices and World Health Organization programs. Geopolitical considerations reference treaties and disputes involving the Line of Control (India and Pakistan), the Durand Line, and the Siachen Glacier.

Historical Regional Concepts

Historical regionalizations draw on polities and trade networks: the classical period features the Maurya Empire and Gupta Empire, while medieval frameworks emphasize the Delhi Sultanate, the Vijayanagara Empire, and the Chola dynasty. The Silk Road and the Indian Ocean trade connected South Asian ports like Calicut, Colombo, and Malé to markets dominated by actors such as the Omani Empire and the Portuguese Empire. Colonial-era categorizations arose under the British East India Company and the British Raj, producing administrative units like the Bombay Presidency and events such as the Partition of India that reconfigured regional borders and migration corridors.

Cultural and Linguistic Regions

Cultural regions correlate with linguistic families: the Indo-Aryan languages dominate the Gangetic Plain with languages such as Hindi, Bengali, and Punjabi, while the Dravidian languages center in the Deccan Plateau with Tamil, Telugu, and Kannada. Tibeto-Burman languages appear along the Himalayas among groups like the Sherpa and Tibetan communities, and Austroasiatic speakers such as the Santali inhabit parts of eastern India and Bangladesh. Religious landscapes overlap with linguistic zones: Hinduism centers include Varanasi and Angkor-era influences, Islam predominates in Karachi and Dhaka, Buddhism has historic sites at Bodh Gaya and Anuradhapura, while Sikhism is concentrated in Amritsar and Punjab.

Physical and Geographical Subregions

Physiographic subregions include the Indo-Gangetic Plain, the Thar Desert, the Deccan Plateau, the Western Ghats, and the Eastern Ghats, as well as island systems like the Lakshadweep and the Maldives Atolls. Major river systems—the Ganges River, Brahmaputra River, and Indus River—form deltas such as the Ganges Delta and support agroecological zones like the Terai. Glacial and montane environments include the Karakoram, the Himalayan foothills, and glaciers such as the Siachen Glacier, which influence hydropolitics and biodiversity hotspots like the Western Ghats (India) and Sri Lanka montane rain forests.

Political and Economic Groupings

Political groupings range from the multilateral South Asian Association for Regional Cooperation and security dialogues involving the Shanghai Cooperation Organisation to bilateral arrangements such as the Indo-Sri Lanka Accord and the Indus Waters Treaty. Economic corridors and agreements include initiatives like the Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation, the China–Pakistan Economic Corridor, and trade linkages mediated by institutions like the World Trade Organization and the Asian Infrastructure Investment Bank. Subregional blocs and corridors—e.g., the Bangladesh–China–India–Myanmar Forum for Regional Cooperation and the India–Mongolia–Russia Economic Corridor—illustrate shifting alignments involving capitals such as New Delhi, Islamabad, Dhaka, and Colombo.

Demographic and Social Patterns

Population concentrations occur in megacities including Mumbai, Delhi, Karachi, Kolkata, and Lahore, while rural densities remain high across the Ganges Delta and Indus Valley. Migration flows manifest as internal rural-to-urban movements, cross-border labor migration to Gulf Cooperation Council states, and diasporas established in London, Toronto, New York City, and Dubai. Social stratification interacts with systems like the Varna system historicity in Vedic period texts, caste mobilizations tied to parties such as the Bharatiya Janata Party and Indian National Congress, and identity politics seen in movements like the Khalistan movement and the Tamil Eelam struggle.

Regional Cooperation and Transboundary Issues

Transboundary challenges include river basin management disputes over the Ganges–Brahmaputra system, maritime disputes in the Bay of Bengal and the Indian Ocean, and environmental crises such as Himalayan glacial retreat and cyclones impacting Bangladesh and Odisha. Cooperative mechanisms engage actors like the United Nations Environment Programme, the International Union for Conservation of Nature, and regional research centers such as the Indian Council of Historical Research and the Council of Scientific and Industrial Research. Security concerns span counterterrorism operations linked to incidents like the 2008 Mumbai attacks, confidence-building measures after the Kargil War, and peacebuilding efforts facilitated by the United Nations Assistance Mission in Afghanistan.

Category:South Asia