Bengaluru’s tech boom strains infrastructure as water deficit hits 500 million litres
The city, home to nearly 15 million residents and major global firms, faces severe congestion and flooding after wetlands were developed for offices and housing.
Bengaluru, widely recognised as India’s technology hub, is confronting severe environmental and infrastructure challenges driven by rapid urban expansion over the past 25 years. The city, which hosts nearly 15 million residents and major global firms such as Apple, Microsoft, and Intel, is ranked as the world’s second most congested city. Key environmental pressures include a daily water deficit of 500 million litres, exacerbated by high consumption from approximately 31 data centres, and frequent flooding resulting from the development of wetlands and lakebeds.
The city’s transformation began in the 1990s after India liberalised its economy, introducing new software and computer policies. Global companies including Dell, IBM, and Bosch established operations in Bengaluru, attracted by lower labour costs, a large English-speaking workforce, and a strong educational ecosystem. Initially, the city served as a major hub for Business Process Outsourcing, handling customer support, finance, and back-office operations for international clients.
By the 2010s, the city’s economic focus shifted from backend services to research and development and entrepreneurship. This transition sparked a startup boom, with Bengaluru now home to over 16,000 startups. The influx of millions of people seeking opportunities placed enormous pressure on the metropolis, leading to extreme congestion and the conversion of natural drainage channels into housing and office spaces.
The loss of wetlands and lakebeds has left parts of the city vulnerable to flooding during monsoon rains. Concurrently, shrinking lakes and excessive groundwater extraction have deepened water shortages. With a daily water deficit of nearly 500 million litres, many residents now rely on private water tankers to meet their domestic needs.
As India positions itself as a global data centre hub, concerns are growing over the sustainability of this growth. Bengaluru hosts around 31 data centres, with a single one-megawatt facility consuming nearly 68,000 litres of water daily for cooling. Environmentalists warn that unchecked urban growth without ecological planning could leave the city increasingly vulnerable to climate change.
