Supply-led water deprivation prevails in major cities in India. The per capita water availability in these cities is nowhere near the standards laid down by the World Health Organisation or the Bureau of Indian Standards (1993), and it is also far lower than that in other large cities in the world. The availability of water in Indian cities varies with socio-economic groups and areas.

Water delivery is the responsibility of the government. Thirty years ago many parts of Delhi received drinking water much of the time. Today no area receives water round the clock and worse, the water delivered is contaminated. In common with cities in many developing countries, industrialisation, rapid urbanisation and growing population estimated to be around 16 million, caused in part by migration from rural areas, have put pressure on Delhi's water resources. An increased demand for water and falling ground-water levels have only intensified this pressure.

Metropolitan slums in diverse nations like India have always been homes to rural migrants from a variety of linguistic, religious and regional backgrounds and reflect a unique cultural dynamism.