India is urbanising at a pace that its health systems were never designed to handle. As more people crowd into cities in search of work, a quiet crisis is unfolding in the alleys of informal settlements and on the margins of every major metro. The story of urban health is not just about hospitals and doctors. It is about where people live, the water they drink, the air they breathe, and whether the city counts them at all. Behind the glass towers and flyovers sits a population whose health outcomes can be worse than those in some of the world’s poorest countries.

Table of Contents

Urbanisation and the health risks it creates

The scale of urban growth here is staggering. The 2011 Census recorded an urban population of about 377 million, or 31.2 per cent of the country, with the number of towns rising sharply over the previous decades. This growth has not been smooth or planned. Much of it has been driven by rural-to-urban migration, with families arriving faster than cities can build housing, water lines, or sanitation networks.

The result is the rapid spread of slums. Census data shows that roughly 17.4 per cent of the urban population lives in slum conditions, a figure that translates into tens of millions of people. The same data records the slum population rising from 27.9 million in 1981 to around 65.5 million in 2011. In some cities, the concentration is far higher. Researchers have noted that slum dwelling reaches as high as 41 per cent of Mumbai’s population, where workers settle near commercial hubs because they cannot afford to live anywhere else.

It is worth remembering that even these numbers may understate the problem. Independent studies that map population density rather than relying on administrative boundaries have estimated urbanisation closer to 43 per cent for 2011, a gap of well over a hundred million people compared with the official count. Many settlements are never formally notified as slums, which means their residents fall outside the planning and welfare systems meant to serve them.

Why crowding turns into a health hazard

Density itself becomes a risk factor. When large numbers of people share cramped quarters with intermittent water supply and inadequate toilets, the conditions for disease multiply. Airborne infections spread easily in poorly ventilated homes. Stagnant water and improper waste disposal create breeding grounds for mosquitoes. Public health infrastructure in these areas is often thin or missing entirely, so a treatable illness can escalate before anyone reaches care.

For decades, urban health received little policy attention because the country was viewed primarily as rural. As one analysis from the Centre for Social and Economic Progress points out, urban health issues are deeply tied to sectors outside health itself, including housing, water, and sanitation. A clinic alone cannot fix illness that originates in the living environment.

The disparities hidden inside the city

One of the most important things to understand about urban health is that the “city average” hides enormous inequality. Aggregate statistics make urban areas look better served than rural ones, with more doctors and hospitals per person. But the distribution of those resources within a city is sharply unequal, and the people living in slums often cannot reach them.

The National Family Health Survey-3 (NFHS-3), conducted in 2005-06, was a turning point because it was specifically designed to separate slum and non-slum populations in eight major cities, and it built a wealth index to identify the urban poor as the lowest quartile. This made the divide visible in a way earlier surveys had not. The full report on living conditions in eight Indian cities documented just how wide the gap had become.

What the numbers reveal

The findings were stark. According to NFHS-3 data summarised in the National Urban Health Mission framework, the under-five mortality rate among the urban poor stood at 72.7 per 1,000, far above the urban average of 51.9. More than 46 per cent of urban poor children were underweight, and nearly 60 per cent missed full immunisation before their first birthday.

A closer look at the poorest urban quartile paints an even harsher picture. Analysis published in a peer-reviewed urban studies journal found that among this group only about 40 per cent of young children were fully immunised, 54 per cent of under-fives were stunted, 82 per cent lacked piped water at home, and 53 per cent had no access to a sanitary toilet. These are not the conditions one expects in a country celebrated for its economic rise.

Maternal health follows the same pattern. Studies comparing urban poor and non-poor families have found roughly 56 per cent home deliveries among the urban poor against about 21.5 per cent among the urban non-poor, with far fewer poor women receiving full antenatal care. The gap is not about geography alone. It is about income, social status, and whether a family is recognised by the system at all.

This disparity has consequences that ripple outward. More recent reporting based on later survey rounds has noted that the poorest urban children can face under-five mortality rates that are worse than their rural counterparts, a reversal of the usual assumption that cities offer better odds. The medical cost burden compounds this, with the richest urban households spending several times more per hospitalisation than the poorest, yet the poorest are pushed toward expensive private care because public facilities are out of reach.

Key public health challenges in urban slums

The problems facing the urban poor cluster around a few recurring themes. Understanding them together helps explain why isolated fixes rarely work.

Poor sanitation and unsafe water

Sanitation is the foundation of public health, and it is precisely what slums lack. Without sealed sewage, clean piped water, or reliable waste collection, residents face constant exposure to contaminated water and food. This drives diarrhoeal diseases, cholera, and typhoid, which hit children hardest. The link between the physical living environment and disease is direct and unforgiving.

Access to healthcare that exists on paper

A hospital that is too far away, too expensive, or perceived as low quality is not real access. Slum residents frequently must travel longer distances to reach a public facility, which delays treatment. Many slums are not even formally recognised, so they lack a nearby primary health centre entirely. The absence of clear norms for urban primary care has long been a structural weakness, something the National Urban Health Mission, launched in 2013, was meant to address by setting up Urban Primary Health Centres for populations near slums.

Communicable diseases that thrive in density

Crowding and poor ventilation make slums hotspots for tuberculosis, with infection rates in these areas often running well above national averages. Vector-borne diseases also flourish. Research cited in a study setting priorities for urban health policy found that malaria cases among the urban poor were roughly twice those among other city residents, driven by stagnant water and dense settlement.

The rising burden of non-communicable diseases

Cities now carry a double burden. Alongside infectious disease, non-communicable diseases such as hypertension, diabetes, and heart disease are climbing steadily. This is sometimes assumed to be a problem of the affluent, but surveys of urban slums tell a different story. A study of slum communities in Faridabad found a high prevalence of risk factors for these diseases across all age groups, signalling a heavy future burden. Tobacco use is one driver, with self-reported use among men in urban slums recorded well above that in other urban areas. Changing diets, reduced physical activity, and chronic stress in informal settlements all feed into this trend.

Fragmented governance and underfunding

Tying these challenges together is a problem of management. Urban health systems are often fragmented across multiple agencies, overstretched, and underfunded. The mission designed to narrow these gaps has struggled with declining budget allocations and uneven implementation. Analysts increasingly argue for a unified administrative body to plan and coordinate urban health, rather than the patchwork that currently leaves the poorest residents to fall through the cracks.

Where this leaves the city

The health of a city is ultimately a test of how it treats its most vulnerable residents. Rapid urbanisation has delivered economic growth, but it has also produced settlements where basic services are absent and illness is woven into daily life. The data from NFHS-3 onward makes one thing clear: averages mislead, and the gap between the urban poor and the urban affluent is the real story. Closing that gap requires looking beyond clinics to water, sanitation, housing, and the simple act of counting people who currently go unrecorded.

What do you think? If the urban poor in some cities face worse health outcomes than rural populations, should health policy treat slums as a distinct priority rather than folding them into general urban planning? And what would it take for a city to genuinely count and serve the residents who currently live outside its official maps?

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References
  1. https://nbo.gov.in/pdf/SLUMS_IN_INDIA_Slum_Compendium_2015_English.pdf
  2. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4936160/
  3. https://pmc.ncbi.nlm.nih.gov/articles/PMC6934249/
  4. https://csep.org/discussion-note/addressing-urban-health-challenges-in-india-shifting-focus-to-the-urban-poor/
  5. https://dhsprogram.com/pubs/pdf/od58/od58.pdf
  6. https://nhm.gov.in/images/pdf/NUHM/Implementation_Framework_NUHM.pdf
  7. https://journals.sagepub.com/doi/10.1177/0956247811398589
  8. https://www.indiaspend.com/health/why-indias-urban-poor-see-worse-health-outcomes-951387
  9. https://www.sciencedirect.com/science/article/abs/pii/S0264275111000631
  10. https://pubmed.ncbi.nlm.nih.gov/17867614/

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Issues and Challenges in Urban Planning and Development

1 Housing

  1. Housing: Concept and Types
  2. Factors Influencing Housing Pattern
  3. Housing Conditions and Shortage
  4. Housing Finance and Classification
  5. Housing Development Process
  6. Affordable/Inclusive Housing
  7. Housing Policies/Plans
  8. Appropriate Technology for Housing

2 Urban Industrialisation

  1. Industrialization and Growth
  2. Phases of Industrial Development
  3. Perspectives on Size Structure of Firms
  4. Agglomeration and Industrial Clusters
  5. Foreign Direct Investment Flows
  6. Industry and Employment

3 Urban Land Market

  1. Urban Land: Concept and Related Legal Aspects
  2. Land Market: Concept and Types
  3. Classification of Land and Land Markets
  4. Characteristics of Urban Land Market
  5. Segment of Urban Land Market
  6. Problems With Regard To Land Markets
  7. Urban Land Price

4 Urban Paradoxes

  1. Urbanisation Paradox: Concept and Meaning
  2. Shortcomings of Rapidly Growing Urban India
  3. Urban Crime and Violence
  4. Health Consequences of Living in Cities
  5. Urbanisation and Violence in India
  6. Challenges of Sustainable and Inclusive Cities

5 Water And Sanitation

  1. Water and Sanitation: Concept and Importance
  2. Water-Sanitation and Development Relationship
  3. Health Effects of Water and Sanitation
  4. Challenges of Water and Sanitation Problems
  5. Water and Sanitation Policy of India

6 Waste Management

  1. Waste Management: Concept and Elements
  2. Types and Characteristics of Urban Waste
  3. The Waste Management Hierarchy and the 3R Concept
  4. Governmental Measures for Waste Management
  5. Role of Private Sector, NGOs and Community in Waste Management
  6. Deficiencies and Challenges in the SWM System in India

7 Transport System Management

  1. Classification of Transport System
  2. Transport System Indicators
  3. Characteristics of Urban Mass Transit System
  4. Transport Systems as per Modes
  5. Transport System Management
  6. Resources Component of Urban Transport

8 Energy Management

  1. Energy Concepts and Types
  2. Sustainable Urban Energy Planning
  3. Local Governments and Sustainable Energy Management
  4. Role of Information Technology
  5. Energy Audit
  6. Government Response – Municipal Demand Side Management
  7. Government Response – Green Buildings

9 Urban Health Care

  1. Health: Concept and Relationship with Development
  2. Components of Health Care
  3. Urban Health Care: Situation and Issues
  4. Urban Health Delivery System
  5. National Urban Health Mission Framework for Implementation
  6. Problems of Urban Health Care System

10 Urban Education

  1. Education: An Overview
  2. Education: Global and Regional Status
  3. Education in Urban Context: Issues and Challenges
  4. Measures to Promote Urban Education
  5. Challenges of Education in Urban Slums

11 Urban Law And Order

  1. Urban Spaces and Law and Order Problems-An Overview
  2. Challenges of Urban Law and Order
  3. Urban Revitalisation Measures to Improve Law and Order
  4. Urban Governance and Maintenance of Law and Order for Safety and Security

12 Urban Safety And Security

  1. Safety and Security: Concept and Meaning
  2. Urban Crime: Dimensions and Classifications
  3. Crime in Indian Cities
  4. Measures for Strengthening Urban Safety and Security

13 Informal Sector-An Overview

  1. Informal Sector- Concept, Meaning and Characteristics
  2. Contribution of Informal Sector to Income and Employment
  3. Problems of Informal Sector
  4. Programmes and Policies for Informal Sector and Its Workers
  5. Recommendation of NCEUS to Strengthen the Unorganised Sector

14 Informal Settlement And Urban Poor

  1. Informal Settlement: Meaning and Typology
  2. Cause and Formation of Informal Settlements
  3. Governmental Measures on Housing for Economically Weaker Section
  4. Slum Upgradation: Meaning, Importance and Measures

15 Urban Unemployment

  1. Unemployment: Types, Measurement, and Causes of Unemployment
  2. Unemployment in Urban Areas
  3. Growth in Urban Employment/Unemployment
  4. Policies and Programs to Reduce Unemployment in India

16 Gender Dimensions Of Urban Poverty

  1. Urban Poverty: Concept and Gender Dimension
  2. Urban Poverty: Measurement, Estimates, and Challenges
  3. Urban Poverty: Causes and Consequences

17 Pollution

  1. Concept of Industrialization and Industrial Pollution
  2. Industrialization – Special Economic Zone (SEZ)
  3. Air Pollution
  4. Water Pollution
  5. Soil Pollution
  6. Noise Pollution
  7. Socio-Economic Impact of Industrialization

18 Urban Heritage

  1. Heritage: Concept and Meaning
  2. Types of Urban Heritage
  3. Challenges of Urban Heritage
  4. Conservation and Rehabilitation of Urban Heritage
  5. Urban Heritage Policies

19 Water Bodies, Waterways and Wetlands

  1. Water Bodies: Concept, Importance and Benefits
  2. Waterways: Concept and Significance
  3. Wetlands: Concept and Significance
  4. Economic Value of Wetlands
  5. Ecological and Water Footprints of Urban Areas
  6. Revitalization of Water Bodies

20 Open Spaces

  1. Open Spaces: Meaning and Significance
  2. Types of Open Space
  3. Status of Open Spaces in Indian Cities
  4. Causes of Deterioration of Open Spaces
  5. Parameters and Approaches for Revitalization of Open Spaces