Slums and Deprivation in Urban Areas

Defining Slums

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• The Slum Areas (Improvement and Clearance) Act, 1956 defines slums as areas where buildings are unfit for human habitation — by reason of dilapidation, overcrowding, poor building design, narrow streets, or lack of ventilation, light, or sanitary facilities, whether singly or in combination — such that these conditions are detrimental to safety, health, or morals.
• A slum is best understood as substandard housing within a city — an inhabited uninhabitable habitation — and its growth is widely considered second only to the population explosion as a threat to urban society in the present century.
• Michael Harrington’s account of poverty as a self-perpetuating condition, cutting the poor off from the material and social resources that would let them escape it, applies directly to slum residents: deprivation in slums is rarely a temporary phase awaiting individual mobility but a structural condition sustained by the housing market, the labour market, and civic neglect acting together.

Magnitude of the Problem

• India has no systematic, scientific, all-India survey of the slum population that is regularly updated — most available data comes from city-specific, ad hoc surveys, itself a telling indicator of how low a policy priority the slum population has historically been.
• Slum populations in India’s largest metros run remarkably high as a share of total city population: Mumbai around 34.3%, Kolkata around 32.9%, Chennai around 32.1%, and Delhi around 31.4%, with an all-India average of roughly 29.1% of the population living in slums across cities with over ten lakh residents.
• Empirical evidence consistently shows a positive relationship between the intensity of urbanization and the share of a city’s population living in slums — the very dynamism that draws migrants to a city also generates the housing shortfall that produces the slum.
• Slums are also disproportionately deficient in basic services, with water supply and sanitation facilities being the most acute gaps, and this deprivation compounds into secondary social problems: juvenile delinquency and inadequate socialization are comparatively more prevalent in slum settings, and slums frequently function as cover for illicit activity such as gambling that preys on the wider city population.

Genesis and Growth of Slums

• The higher intensity of economic activity in cities is the primary pull factor drawing poor migrants, mainly from adjacent rural areas, who typically arrive with practically no resources and become the population instrumental in establishing slums and squatter settlements.
• This urban poor population is not marginal to city life but structurally essential to it — vending, plumbing, waste disposal, domestic work, and transport services performed by slum residents keep the rest of the urban economy functioning.
• No amount of legal or regulatory mechanism has been able to halt this process, because it is sustained by a genuine economic logic: city consumers bargain for the cheapest available labour, goods, and services, and the migrant poor population remains ready to supply exactly that at the lowest cost.
• To minimize both earning costs and living costs, the urban poor frequently occupy open land wherever it is optimally located relative to work opportunities — explaining why slums so often cluster near railway lines, industrial areas, and drainage channels rather than at the urban periphery.
• Formal low-cost housing schemes meant for economically weaker sections have often been priced beyond what slum dwellers can actually afford, effectively pricing the intended beneficiaries out of the very housing supply built for them.

Types of Slums

• Original slums: areas that were unsuitable for habitation from the very beginning, typically clustering around an old, now-abandoned factory or mining site in a city’s zone of transition; these are usually considered beyond recovery, consisting of age-old structures that need to be razed entirely (examples cited in the literature include older slum clusters in Kolkata).
• Transitional-zone slums: created when middle- and upper-class families move away from an area, or when a new industry starts nearby, producing congestion and the subsequent physical deterioration of what was previously a stable residential area — found characteristically in the transition zones of developing cities.
• Downgraded business-district slums: the most socially unpleasant type, appearing once the area around a city’s main business district becomes blighted and physical and social deterioration spreads rapidly; these areas come to house flophouses, one-night shelters for the destitute, and centres of prostitution, populated disproportionately by chronic alcoholics, beggars, the homeless, and habitual offenders.

Sociological Perspectives on Slum Society

• M.S.A. Rao’s work on urban social organization highlights that slum communities are not simply disorganized — informal kinship and caste networks, mutual-aid arrangements, and community associations frequently provide the social infrastructure that formal civic institutions fail to supply, functioning as genuine adaptive mechanisms rather than mere symptoms of poverty.
• D’Souza and Ghanshyam Shah, studying urban ethnic and caste composition, similarly found that slum neighbourhoods often replicate caste and regional groupings from migrants’ places of origin, with settlement patterns reflecting chain migration along kin and community lines rather than random association.
• A.R. Desai and S.D. Pillai’s landmark study of Mumbai’s Dharavi remains a foundational sociological account of Indian slum life, documenting how an area popularly read simply as a site of deprivation was in fact home to a dense, functioning informal economy — small-scale leather, pottery, and textile production — alongside genuine housing precarity, complicating any account of slums as purely sites of social breakdown.
• Myron Weiner’s research on urban poverty and politics in India examines how slum dwellers have been drawn into urban political processes — as vote banks courted through selective service provision, and as a population whose informal land tenure leaves it perpetually vulnerable to eviction threats that local politics can either weaponize or shield against.
• Geeta Diwan Verma, writing critically on Mumbai’s Slum Rehabilitation Authority approach, argues that redevelopment schemes premised on vertical, high-rise rehousing frequently disrupt the very informal economic and social networks — home-based work, street-level commerce, walkable proximity to livelihood — that made slum life economically viable in the first place, meaning well-intentioned redevelopment can degrade residents’ economic position even while improving their housing structure.

Forms of Deprivation Associated with Slums

• Housing deprivation: overcrowding, structurally unsound dwellings, and the absence of secure land tenure, leaving residents perpetually vulnerable to eviction regardless of how long they have lived at a site.
• Service deprivation: acute shortages of piped water, sanitation, drainage, and electricity — the deficiency the source literature identifies as the single most acute dimension of slum deprivation.
• Economic deprivation: dependence on low-paid, insecure informal-sector work, discussed at length in the companion article on the informal sector and child labour, which is the dominant occupational base for slum residents.
• Deprivation of social standing: slum residence itself operates as a stigmatizing marker, feeding processes of social exclusion that extend well beyond the settlement’s physical boundaries into residents’ access to credit, formal employment, and even schooling for their children.
• Health deprivation: poor sanitation and overcrowding compound into disproportionately high disease burden and poor health outcomes, particularly for children.

Evolution of Policy Response

• Early Indian slum policy emphasized outright clearance — demolishing slum settlements — an approach that has since been substantially replaced by an emphasis on the Environmental Improvement of Urban Slums (EIUS), providing basic services (water supply, community toilets, drainage, paved pathways, street lighting) in situ rather than displacing residents.
• Institutional financing followed: HUDCO extended soft loans for slum upgradation and environmental improvement, and from 1989 the government ran a shelter-upgradation scheme under the Nehru Rozgar Yojana.
• Subsequent programmes broadened the response further: the Valmiki Ambedkar Awas Yojana (VAMBAY) targeted urban housing for lower-caste slum dwellers, while the Jawaharlal Nehru National Urban Renewal Mission (JNNURM) carried a dedicated urban-poor component, Basic Services for the Urban Poor (BSUP), within its broader multi-billion-rupee investment envelope.
• Planning guidance has increasingly emphasized land-based solutions over clearance: master and structure plans for cities are now expected to make adequate provision in land use for the housing needs of the low-income service population that makes up the overwhelming majority of most Indian cities’ workforce, ideally on the same site or nearby rather than through resettlement, since ownership without a right to sell (to prevent transfer and re-squatting) combined with proximity to livelihood locations has proven more sustainable than land banking that is disconnected from where residents actually work.

Contemporary Redevelopment: Dharavi and PMAY-Urban 2.0

• Mumbai’s Dharavi Redevelopment Project, a roughly $8 billion undertaking involving the Maharashtra government, the Slum Rehabilitation Authority, and a private developer consortium, aims to rehouse close to a million residents by 2032 into modern high-rise tenements while formally preserving Dharavi’s dense local manufacturing economy; construction on the first set of rehabilitation tenements is slated to begin after the 2026 monsoon, even as the project continues to face legal challenges, including scrutiny from the Supreme Court in 2025 over the developer-selection process — a live illustration of exactly the tension Geeta Diwan Verma’s critique anticipates, between vertical rehousing and preserving residents’ economic base.
• At the national level, PMAY-Urban 2.0, launched in September 2024, targets roughly one crore additional urban families over five years and includes a dedicated slum-redevelopment vertical using land as a resource in partnership with private developers; by early 2026 the scheme’s Central Sanctioning and Monitoring Committee had approved more than 13.6 lakh houses nationally, indicating the programme is scaling but remains far from covering India’s total slum population as estimated above.