Why this matters now
India will add approximately 400 million urban residents by 2050 — equivalent to the entire current population of the United States moving into Indian cities. Whether this transition results in productive urbanisation (East Asian template) or chaotic urbanisation (much of Latin America, Africa) depends entirely on policy decisions in the next 15-20 years.
India's migration patterns
Census 2011 recorded approximately 45 crore (450 million) internal migrants — about 37% of population. This figure includes anyone who has moved from their place of birth or last residence; recent-migration share is significantly smaller.
| Stream | Share | Driver |
|---|---|---|
| Rural to rural | ~55% | Marriage (especially women); some agricultural labour |
| Rural to urban | ~20% | Employment; the urbanisation wave |
| Urban to urban | ~14% | Career mobility |
| Urban to rural | ~10% | Return migration; some retirement |
Source states (net out-migration): Bihar, UP, Odisha, MP, Rajasthan, West Bengal.
Destination states (net in-migration): Delhi NCR, Maharashtra, Gujarat, Karnataka, Tamil Nadu, Punjab, Haryana.
Characteristics of migrants:
- Poor — median migrant household earns <₹15,000/month;
- Somewhat educated — literacy higher than source-state average;
- Predominantly male for employment migration; predominantly female for marriage migration;
- Mostly informal sector — construction, domestic work, transport, manufacturing.
The COVID migrant crisis — 2020
In March 2020, India locked down with 4 hours notice. The consequences for migrant workers:
- Estimated 10 million inter-state migrants attempted to return home;
- Most had no formal employment, no savings, no social security;
- Many walked hundreds of kilometres home (the iconic images of migrants on highways);
- ~200+ deaths reported during the walks (heat, accidents, exhaustion);
- Sources estimated that 4 crore (40 million) workers lost livelihoods in the lockdown period.
Policy responses post-crisis:
- One Nation One Ration Card (ONORC) — portable PDS access across states. Rolled out from 2020; now covering 33 states/UTs.
- e-Shram portal (2021) — registration of unorganised workers; now 30+ crore registrations.
- PM Garib Kalyan Yojana — free food grain to poor (started during pandemic; periodically extended).
- Inter-State Migrant Workmen Act 1979 amendments consolidated into the Occupational Safety, Health and Working Conditions Code 2020.
The crisis demonstrated that internal migrants — who power India's urban economy — lack social protection, portability of entitlements, and political voice. Many of these gaps remain.
India's urbanisation trajectory
India urbanised slowly for most of its post-Independence period — partly because of Gandhi's village-republic ethos, partly because of policy that discouraged urbanisation as 'parasitic'. The pace has now accelerated.
| Year | Urban % | Urban population |
|---|---|---|
| 1951 | 17.3% | 6.2 cr |
| 1961 | 17.9% | 7.9 cr |
| 1971 | 19.9% | 10.9 cr |
| 1981 | 23.3% | 15.9 cr |
| 1991 | 25.7% | 21.7 cr |
| 2001 | 27.8% | 28.6 cr |
| 2011 | 31.2% | 37.7 cr |
| 2024 (est.) | ~35% | ~50 cr |
| 2050 (proj.) | ~50% | ~85 cr |
Urbanisation sources:
- ~40% from natural population growth in existing urban areas;
- ~30% from rural-urban migration;
- ~20% from urban boundary expansion;
- ~10% from reclassification of rural settlements to urban.
A striking feature: India's economic urbanisation has outpaced demographic urbanisation. Urban areas produce ~70% of GDP but have only ~35% of population — implying high productivity differentials and large further migration potential.
The mega-city pattern
India's urbanisation is skewed towards mega-cities (population 10 million+) and million-plus cities (population 1 million+).
| Tier | Number | Examples |
|---|---|---|
| Mega-cities (10M+) | 6 | Mumbai, Delhi NCR, Kolkata, Chennai, Bengaluru, Hyderabad |
| Million-plus (1-10M) | 53 | Ahmedabad, Surat, Pune, Jaipur, Lucknow, Kanpur, Nagpur, Indore, Visakhapatnam, etc. |
| Smaller cities (100K-1M) | ~400 | State capitals + district headquarters |
| Towns (10K-100K) | ~3,500+ | Class III-VI towns |
The challenge: most mega-cities are bursting at the seams. Mumbai's population density is among the highest in the world. Delhi's air quality is among the worst. Bengaluru's water crisis recurs annually. Yet new urban population concentrates in these same cities.
The policy fix attempted: 'second-tier urbanisation' — directing new urban growth to smaller cities. AMRUT (Atal Mission for Rejuvenation and Urban Transformation, 2015) targets 500 cities for infrastructure investment. Smart Cities Mission (2015) selects 100 cities for technology-led development.
The slum challenge — 1 in 6 urban Indians
Approximately 13 crore (130 million) Indians in urban areas live in slums (Census 2011). India has ~70,000 slums, concentrated in major cities.
| City | Slum population | % of city | Notes |
|---|---|---|---|
| Mumbai | ~95 lakh | ~50% | Dharavi 7-8 lakh; world's most photographed slum |
| Delhi NCR | ~30 lakh | ~15% | ~750 slum clusters; demolition vs upgrade tensions |
| Kolkata | ~15 lakh | ~30% | 'Bustees' have legal recognition |
| Chennai | ~12 lakh | ~25% | Tsunami 2004 rehabilitation included slum upgrade |
| Hyderabad | ~10 lakh | ~25% | 2003 Slum Rehabilitation Policy |
| Bengaluru | ~8 lakh | ~10% | Smaller but growing |
Characteristics:
- Most slums are technically illegal (lack security of tenure);
- Poor access to water, sanitation, electricity;
- Higher density than city average (~25,000-50,000 people per sq km);
- Mix of formal and informal employment;
- Significant migrant population;
- High social capital — informal credit, community networks, political mobilisation.
Policy responses:
- Rajiv Awas Yojana (RAY) 2009 — 'Slum-free India' goal; not achieved.
- Pradhan Mantri Awas Yojana — Urban (PMAY-U) 2015 — 1.18 crore houses sanctioned by 2024; 90 lakh delivered.
- Deen Dayal Antyodaya Yojana — NULM — urban livelihoods.
- State-level schemes — Mumbai's Slum Rehabilitation Authority; Delhi DDA; AP Townships.
Urban governance reform — 74th Amendment
The 74th Constitutional Amendment Act 1992 institutionalised urban local government as a constitutional third tier:
- Three categories: Nagar Nigam (Municipal Corporation, >10 lakh population), Nagar Palika (Municipal Council), Nagar Panchayat (transitional);
- Direct elections at all levels;
- Reservations: SC/ST proportional; one-third women (raised to 50% in many states);
- 5-year tenure;
- Schedule XII — 18 subjects on which urban local bodies can legislate (urban planning, water, public health, slum improvement);
- Ward Committees mandatory in cities >3 lakh;
- District Planning Committee and Metropolitan Planning Committee for regional coordination;
- State Finance Commission for fiscal transfers;
- State Election Commission for elections.
Challenges to operationalisation:
- Most states have not fully devolved Schedule XII subjects;
- ULBs remain financially dependent on state grants;
- Mayors have limited executive power compared to state-appointed commissioners;
- Urban planning capacity at city level is thin;
- Coordination between city government, state government, and central government on planning, transport, and police is poor.
For deeper treatment see NCERT Class 11 Polity Ch 8 — Local Governments.
Urban policy framework
Five major schemes shape urban policy:
- Smart Cities Mission (2015) — 100 cities selected; ₹2 lakh crore allocated; focus on technology-led urban infrastructure. Mixed outcomes — some marquee project successes (Pune, Bhubaneswar); other cities have struggled with implementation capacity.
- AMRUT (2015) — Atal Mission for Rejuvenation and Urban Transformation. 500 cities; focus on water supply, sewerage, urban transport, green spaces, capacity building.
- PMAY — Urban (2015) — housing for all. 1.18 crore houses sanctioned; 90 lakh delivered (delays and quality concerns).
- Swachh Bharat — Urban (2014) — open-defecation-free cities; solid waste management. 4,000+ cities certified ODF.
- Metro Rail Projects — operational in 27 cities; under-construction in 18 more. Public transport backbone.
Newer initiatives:
- National Urban Livelihoods Mission (DAY-NULM);
- Heritage City Development (HRIDAY);
- Affordable Rental Housing Complexes (ARHC);
- City Investments to Innovate, Integrate and Sustain (CITIIS).
Climate-induced migration
India faces significant climate migration risk due to:
- Long coastline — 7,500 km; Mumbai, Chennai, Kolkata, Visakhapatnam exposed to sea level rise;
- Sundarbans — already losing islands to sea level rise; ~10,000 people displaced annually;
- Himalayan glaciers — providing water for ~600 million Indians; retreating glaciers will affect Indus, Ganges, Brahmaputra river flows;
- Water stress — 21 of India's 32 major river basins are stressed;
- Drought-prone areas — central, western, southern India;
- Flood zones — Bihar, Assam, West Bengal, Odisha annual flooding affects millions.
World Bank Groundswell Report (2018, updated 2021) estimates 45 million Indians could be internally displaced by climate impacts by 2050.
Examples already occurring:
- Sundarbans 'climate refugees' migrating to Kolkata;
- Cyclone Aila (2009) and Amphan (2020) displaced over 4 million;
- Drought migration from Marathwada, Bundelkhand to Mumbai and Delhi.
Policy gaps:
- India has no national policy on climate migration;
- Disaster Management Act 2005 covers immediate displacement but not long-term climate migration;
- International refugee law does not recognise climate migrants (1951 Refugee Convention);
- Forthcoming National Adaptation Plan (under UNFCCC) is expected to address this.
What urbanisation must become
For India's urbanisation to be productive rather than chaotic, six things must happen:
- Distributed urbanisation — more second-tier cities, less mega-city concentration;
- Empowered ULBs — full Schedule XII devolution; mayoral executive power; municipal finance;
- Affordable housing at scale — both formal-sector (PMAY-U) and informal-sector (slum upgrade with tenure);
- Public transport investment — Metro, BRT, electric bus networks in all million-plus cities;
- Migration-friendly policy — portable entitlements (food, healthcare, education); inter-state worker registration; social security;
- Climate-adapted urbanisation — sea level rise planning for coastal cities; water security for inland cities; heat-island mitigation.
"India is urbanising at the bottom of the income distribution. Other countries urbanised at the middle. That difference is the central challenge of Indian urbanisation policy." — paraphrasing the 2024 World Bank India urbanisation report
UPSC PYQs and likely future questions
UPSC angle
Migration and urbanisation questions span GS-1 (geography, society), GS-2 (urban governance), and GS-3 (economy, infrastructure, climate). Strong answers describe migration patterns accurately, address the urbanisation-productivity gap, identify governance gaps, and connect to current crises (COVID, climate, slums).
- 2017 GS-1: "The Indian migration pattern is changing. Discuss with reference to internal migration trends."
- 2019 GS-1: "Discuss the changes in the trends of labour migration within and outside India in the last four decades."
- 2022 GS-1: "'Urbanisation in India is unique and chaotic.' Examine in the context of India's mega-city pattern and slum challenge."
- 2024 GS-2: "Examine the role of the 74th Amendment in shaping urban governance in India. Why has its operationalisation been incomplete?"
- Likely 2026 question: "Discuss the policy gaps revealed by the COVID-19 migrant crisis of 2020. What has been done since to address them?"
- Likely 2026 question: "Examine the case for distributed urbanisation (second-tier cities) versus mega-city concentration. What policy instruments could shift the balance?"
- Likely 2026 question: "Discuss the constitutional and policy framework needed to address climate-induced internal migration in India."
Society & Demographics cluster — COMPLETE at 4/4
All four pieces shipped: Demographic Dividend, Women's Reservation Act 2023, Caste & Reservation, Migration & Urbanisation. This makes 5 of our 5 thematic clusters now complete (alongside Federalism, Fundamental Rights, Economy, IR).