India has about 88 lakh slum housholds, says the National Sample Survey Office (NSSO). The survey estimates that there are 33,510 slums in urban India, of which 41 % are notified as slums by the authorities concerned. While only 41 % slums are notified, they accommodate about 63 % of all slum-dwelling households.
Predictably, Maharashtra, well known for Dharavi, Asia’s largest slum, accounts for 23 % of all slums. With 13.5 % of slums, Andhra Pradesh comes second, followed by West Bengal with 12 per cent. The NSSO survey further adds that average slum size is 263 households. Under the survey, a slum is defined as “any compact settlement with poorly built tenements, mostly temporary, crowded together, with poor sanitary and drinking water facilities, in unhygienic conditions, provided at least 20 households live there.”