Urban Waterlogging in India: The Monsoon Disaster
Every monsoon season, India receives vital rainfall but at the same time reveals one of its long-standing problems: urban waterlogging. During the monsoon season of July 2026, there was waterlogging of urban territories in Delhi, Mumbai, Gurugram and other cities that caused traffic disruptions, affected rail transport, workplaces and people’s lives.
Urban waterlogging happens because rainfall exceeds the rate of absorption of the liquid into the soil or discharge into water channels. Although the occurrence of heavy rainfall is an important reason, bad urban planning aggravates its impact. According to the Ministry of Housing and Urban Affairs, the reasons for urban flooding include excessive concretization, outdated drainage system, blocked drains, disintegrated drainage planning and unattended wetlands and lakes.
Rapid urban development leads to destruction of vacant land, farms, water bodies and replacement of them by roads, buildings, parking lots and other structures. As a result, rainwater cannot sink in the soil, and surface runoff increases. Narrow, poorly linked drainage channels and accumulation of garbage and construction debris in them can cause waterlogging even after several hours of rainfall.
Recent monsoons show the severity of the situation. Several districts of Delhi suffered from waterlogging after the rains of July which caused traffic jams. There was also severe waterlogging of low-lying areas in Mumbai and some parts of the region where rail services had been disrupted. In Gurugram, waterlogging and road collapse led to kilometers-long traffic jams.
Besides creating inconveniences in traffic, floods can enter houses, damage roads and cars, contaminate drinking water sources and disrupt power supply and other utilities. Floods become favorable environment for mosquitoes which lead to dengue and malaria. Contaminated with sewage, the water can cause skin diseases and stomach infections. Manholes, submerged electricity wires and damaged roads become extra dangerous for people; thus, a man died after falling into a manhole under the conditions of heavy rainfall in Mumbai in July 2026.
Poorer people suffer from waterlogging even more than others. While richer citizens will be able to work from home and move their cars to safer places, informal workers, street vendors, daily-wage earners and poorer families are left without work and are more exposed to contaminated water and damaged housing.
Climate change adds another element of danger. Warmer air contains more moisture, and the chances of heavy rains become higher. At the same time, the rapid urbanization leads to reduction of natural spaces that can soak rainwater. One of the studies predicted an increase of flooding in the Barapullah sub-basin in Delhi due to rising impervious surfaces until 2050.
It is necessary to do much more than emergency pumping of water during monsoon season. Regular cleaning of drains, prohibition of dumping, restoration of wetlands and lakes, preservation of natural drainage channels and restriction of constructions in flood-prone areas are needed. There should also be introduced such measures as permeable pavements, rain gardens, rainwater harvesting on roofs, creation of green areas and flood monitoring.
Waterlogging is not an unavoidable phenomenon of Indian monsoon. Even though heavy rainfall is a natural process, its effect on cities depends on planning and maintenance. Development of climate-resilient cities requires proper drainage engineering, preservation of natural water resources and collaboration of various parties involved.
References:
National Disaster Management Authority – Management of urban flooding. Government of India.
Ministry of Home Affairs – Urban flooding in India. Government of India.
The Hindu – Heavy monsoon rain wreaks havoc across India.
India Today – Monsoon rain causes waterlogging in Delhi-NCR and Mumbai.