When a construction worker from Bihar boards a train to Delhi, or a software engineer from Bengaluru relocates to California, they are doing more than changing addresses. They are participating in one of the most powerful engines of economic transformation in South Asia. Migration, whether across districts or across continents, reshapes household incomes, regional economies, and entire nations. For a region marked by persistent poverty and high unemployment, the movement of people has become a vital pathway to development. This post explores how that relationship works, why it matters, and where its limits lie.
Table of Contents
- Understanding the migration and development link
- Two types of migration that matter
- How remittances power the economy
- Why remittances are so resilient
- Reducing poverty and unemployment
- The Kerala story
- Skills, knowledge, and human capital
- Gender and social change
- The challenges and limits of migration-led development
- Policy and the road ahead
Understanding the migration and development link
Migration and development are deeply connected. When people move, they typically chase better wages, more secure jobs, and improved living conditions. The income they earn, the skills they acquire, and the money they send back home all feed into broader economic growth. This is especially true in South Asia, which draws close to a quarter of the world’s total remittance volume, contributing on average more than 10 per cent of GDP across the region’s economies.
The core idea is straightforward. Regions with surplus labour and limited opportunities send workers to regions with labour shortages and higher wages. This movement allocates human resources more efficiently. Workers earn more than they could at home, employers fill gaps in their workforce, and the home economy receives a steady inflow of money and knowledge. Development, in this sense, is not just about the destination growing richer. The origin region benefits too.
Two types of migration that matter
Migration takes two broad forms, and both shape development. Internal migration involves movement within a country, such as a worker leaving a village in Uttar Pradesh for a factory job in Gujarat. International migration involves crossing borders, like a nurse from Kerala working in the Gulf or the United Kingdom.
Internal migration is enormous in scale. The Census of 2011 counted around 139 million internal migrants, accounting for both inter-state and intra-state movement. The Economic Survey of 2016-17 estimated that, on average, about nine million people travelled across states each year for work between 2011 and 2016. The most common pattern is people moving from rural areas to cities in search of better employment and living standards.
How remittances power the economy
Remittances are the money migrants send back to their families. They are the most visible and measurable way migration drives development. For South Asian households, this money funds daily expenses, education, healthcare, and small business investments. For national economies, it provides a stable source of foreign exchange that helps fill fiscal and current account gaps.
The numbers are striking. In 2024, India was the world’s top recipient of remittances with an estimated inflow of $129 billion, far ahead of Mexico, China, the Philippines, and Pakistan. Over the decade from 2014 to 2024, the country received nearly $982 billion in total. Remittances now account for close to 3 per cent of national GDP and have at times exceeded foreign direct investment, making them a genuine lifeline for the economy.
Why remittances are so resilient
One remarkable feature of remittances is how stable they are, even during crises. While global remittance flows fell during the COVID-19 pandemic in 2020, the volume of remittances flowing into South Asia actually increased that year. Migrants tend to send more money home precisely when their families face hardship, which makes these flows countercyclical and dependable in ways that aid or investment often are not.
The composition of these flows has also shifted. According to Reserve Bank of India data, the share of remittances from high-income countries such as the United States, the United Kingdom, and Singapore climbed sharply, while the share from Gulf countries declined. This reflects a broader move by Indian migrants away from low-paid manual work toward more skilled, higher-earning professions abroad.
Reducing poverty and unemployment
Migration directly tackles two of South Asia’s most stubborn problems: poverty and unemployment. When workers from labour-surplus regions move to where jobs exist, they reduce pressure on local labour markets and ease underemployment back home. The wages they send back lift families out of poverty and diversify household income, so a family is no longer dependent on a single uncertain source like seasonal farming.
Internal migration plays a crucial role here. Rural-to-urban migration has been a major driver of urban growth, as people who cannot find sufficient economic opportunity in villages move to towns and cities. This movement fills gaps in labour demand and supply, channelling skilled, unskilled, and cheap labour to where it is most needed. Construction, manufacturing, and services in major cities depend heavily on this migrant workforce.
The Kerala story
No example illustrates the migration and development link better than Kerala. For decades, large numbers of Keralites have worked abroad, particularly in the Gulf, sending home money that transformed the state. The latest Kerala Migration Survey of 2023 estimated 2.2 million emigrants, and remittances to the state surged to over ₹216,000 crore in 2023, a jump of roughly 155 per cent from 2018. These inflows contributed about 23 per cent of the state’s domestic product.
This money is visible everywhere in Kerala, from improved family housing to higher spending on education and healthcare. Migration here is not just a demographic fact; it has become an economic institution that shapes living standards across entire districts.
Skills, knowledge, and human capital
Development is not only about money. Migration enhances the skills and knowledge of the people who move. Exposure to new work environments, technologies, and ideas builds human capital that migrants can use whether they stay abroad or return home. Migration enhances the knowledge and skills of migrants through exposure and interaction with the wider world, improving both their earning potential and their quality of life.
When migrants return, they often bring back expertise, capital, and networks. Returnee professionals carry knowledge of advanced healthcare delivery, research techniques, and IT systems, while their international connections can facilitate trade and investment. This is the idea of “brain gain,” where the skills gained abroad eventually circulate back into the origin economy.
Gender and social change
Migration also reshapes social structures, including gender roles. Research on South Asia finds that migration can transform gender roles in the home country and serve as an instrument for gender development. When women migrate or take on greater decision-making responsibilities while male relatives are away, they often gain more mobility, involvement in economic activity, and influence over household decisions. Remittance-receiving status itself can act as a tool for alleviating poverty and shifting traditional roles.
The challenges and limits of migration-led development
Migration is not a flawless development strategy. Its benefits come with real costs and risks that policymakers must manage carefully.
Brain drain. When highly skilled professionals leave permanently, origin regions can lose vital human capital. India faces acute shortages of doctors and nurses even as over 17 million Indians live overseas, including a large number of healthcare and IT workers. Whether this becomes a drain or a gain depends heavily on whether a country’s education system can keep producing new skilled graduates to replace those who leave.
Over-dependence on remittances. Heavy reliance on money from abroad can distort an economy. In Kerala, scholars warn that overdependence on external income flows has hindered local industrialization, leaving the economy under-diversified and vulnerable to shocks in destination countries.
Vulnerability of migrants. Many migrants, especially low-skilled workers, face exploitation. South Asian countries have not yet fully captured the benefits of remittances because of limited financial development and because a large share of money still flows through informal channels. Workers often shoulder high recruitment, visa, and travel costs, and weak legal protections in some host countries leave them exposed.
Strain on cities and rural decline. Internal migration places heavy pressure on urban housing, transport, and services, while rural areas can experience labour shortages and depopulation. Migrant workers within India also frequently struggle to access social entitlements like the public distribution system when they move, since many benefits are not portable across states.
Policy and the road ahead
Governments across South Asia have begun responding to these realities. In India, schemes such as the eShram portal aim to register unorganised and migrant workers, while social security programmes attempt to extend protection to this vulnerable group. The 2026 National Migration Survey, the first dedicated migration survey in nearly two decades, signals renewed attention to mapping mobility and improving welfare access.
The key challenge is to convert migration’s gains into lasting development. This means lowering the cost of sending money home, shifting remittances from informal to formal channels, investing inflows in productive sectors rather than only consumption, and building portable welfare systems so that migrants are not penalised for moving. Done well, migration can be a deliberate development tool rather than a desperate last resort.
What do you think? Should South Asian governments actively encourage migration as a development strategy, or focus instead on creating enough opportunities at home so that fewer people feel compelled to leave? And how can a region balance the clear economic gains of remittances against the long-term risk of becoming dependent on income earned elsewhere?
References
- https://link.springer.com/chapter/10.1057/9781137350800_1
- https://www.weforum.org/stories/2017/10/india-has-139-million-internal-migrants-we-must-not-forget-them/
- https://blogs.worldbank.org/en/peoplemove/in-2024–remittance-flows-to-low–and-middle-income-countries-ar
- https://www.tandfonline.com/doi/full/10.1080/00036846.2023.2297740
- https://www.migrationpolicy.org/article/internal-labor-migration-india-raises-integration-challenges-migrants
- https://www.drishtiias.com/daily-updates/daily-news-analysis/india-s-internal-migration
- https://www.policycircle.org/opinion/migration-trends-from-kerala/
- https://pmc.ncbi.nlm.nih.gov/articles/PMC11025888/
- https://www.researchgate.net/publication/395763764_From_Brain_Drain_to_Brain_Gain_The_Impact_of_Developed_Nations_Immigration_Restrictions_on_India's_Innovation_Ecosystem_and_Economic_Growth
- https://www.researchgate.net/publication/397139284_Reimagining_Migration_Social_Science_Innovations_for_Kerala's_Development_Paradox
- https://www.adb.org/publications/worker-migration-and-remittances-south-asia
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