By Kiran Avadhanula, Senior Sector Specialist, Sustainable Urban Development, KfW
The water sector in India is currently at a critical juncture, with the urban population projected to grow from the current 500 million to 900 million by 2050. Cities already contribute nearly 70 per cent of the country’s gross domestic product, driving a substantial rise in demand for water infrastructure and essential services. It is also noted that urban India represents only around 3 per cent of the country’s land area, while accounting for approximately 5-10 per cent of the total water resource use, highlighting the concentration of demand within a relatively small geographic footprint. Simultaneously, intensifying climate risks are placing additional pressure on urban water systems, making this phase both a major opportunity and a significant challenge.
Over the past two decades, both the central government and state governments have made substantial investments in the water sector through programmes such as the National Urban Renewal Mission, Atal Mission for Rejuvenation and Urban Transformation, Swachh Bharat Mission, Smart Cities Mission and other state schemes. Despite these efforts, a water supply gap continues to affect the urban infrastructure. In the water sector, access does not always translate into reliable supply, with intermittent water availability remaining a major concern, coupled with quality that is sub-par. Sewerage treatment remains below 30 per cent, with only around 50 per cent of solid waste processed; and stormwater management continues to face gaps in planning and data systems. These challenges highlight the need for a shift towards integrated, climate-resilient and service-oriented urban water management systems. Alongside, the financing landscape is gradually shifting from traditional public funding towards diversified and public-private partnership (PPP)-led models, supported by emerging financial mechanisms.
Bridging the financing gap
Financing the urban water infrastructure has emerged as a critical priority as India seeks to meet its rising water demand, while improving the quality and efficiency of service delivery. At the same time, India’s urban water infrastructure requirements over the next 15 years are estimated at nearly Rs 80 trillion, highlighting the scale of investment needed to support growing cities and expanding water service demands. While coverage in water supply and wastewater systems is improving, concerns persist regarding the efficiency and quality of service delivery. This raises a broader question of whether scale alone is sufficient to address the sector’s challenges.
Against this backdrop, the financing structure in the water sector reveals a significant mismatch between investment needs and available funding sources. If the business-as-usual scenario continues, public funding is expected to cover only around 50 per cent of this requirement. In addition, market-based financing mechanisms continue to play only a limited role in urban water infrastructure development and private sector financing is equally low.
These challenges are further compounded by structural constraints within the existing financing model. Urban local bodies (ULBs) continue to grapple with weak finances, heavy dependence on grants and limited creditworthiness, restricting their ability to attract long-term investment. Additionally, there remains a shortage of bankable and well-structured projects capable of drawing institutional or private sector financing. Planning approaches also remain largely focused on capex, often overlooking long-term operations and maintenance (O&M) requirements, which further contributed to low confidence among private sector participants.
In this context, multilateral and bilateral agencies and domestic development finance institutions are increasingly expected to play a broader “finance plus” role in urban infrastructure development. Their contribution extends beyond capital support to improving water project structuring, strengthening long-term sustainability and incorporating life cycle cost considerations into infrastructure planning. These institutions also play an important role in the capacity development of ULB personnel and in incentivising reforms as part of the overall infrastructure financing, thereby supporting a shift from asset creation towards service-oriented delivery models.
Push towards the PPP financing model
PPP-based financing is emerging as an important approach for improving investment, efficiency and long-term service delivery in the water sector. Traditional public procurement under the central government’s policy and directives is primarily designed to ensure proper and timely execution. However, it is largely driven by the lowest cost bidder approach, which often limits innovation and results in rigid schedules of rates that constrain flexibility in project design and execution. PPPs, meanwhile, offer an alternative approach by moving beyond engineering, procurement and construction models towards lifecycle-based contracts, with more balanced risk-sharing between public and private entities. However, PPPs also face several challenges. While sectors such as highways, airports and ports have seen relatively successful PPP models, urban water infrastructure projects have achieved limited success, mainly owing to uncertainty related to cost recovery and uneven distribution of risks and rewards. In this context, only a few structured models such as the hybrid annuity model under the Namami Gange Programme stand out, although it is still too early to assess their long-term success.
Nevertheless, financing in urban water infrastructure is gradually shifting from a capex-focused approach to a lifecycle cost perspective. This involves integrating O&M planning from the onset, rather than treating it as a post construction concern. In this context, PPPs can provide a more comprehensive financing structure that covers both capex and opex, enabling a transition from a traditional capex and opex divide to a lifecycle cost-based approach. This shift supports more sustainable and continuous service delivery outcomes. Enabling this transition requires stronger financial capacity among ULBs, performance-based financing and a shift from asset creation to service delivery outcomes.
Emerging financing mechanisms
New financing models are also gradually reshaping the urban water infrastructure landscape, with municipal bonds increasingly seen as a key instrument for raising capital. Over the past five years, more than 25 bond transactions have been undertaken, although most have remained relatively small in scale, typically limited to around Rs 2 billion. In response, the central government has introduced incentives for larger bond issuances, including support for issuances of up to Rs 20 billion. Alongside, a range of other innovative financing instruments, including blue bonds, green bonds, orange bonds and other environmental, social and governance-linked financing structures, are becoming more prominent.
Meanwhile, mechanisms such as viability gap funding, introduced in 2005, have seen limited but meaningful application in the urban water sector, with one notable case supported through financing from the KfW Development Bank (KfW). These instruments hold strong potential to support project viability, while their effectiveness is closely linked to the creditworthiness of ULBs and their commitment to financial discipline and reform.
KfW’s financing framework and project assessment
KfW’s urban water development portfolio in India provides integrated financing solutions for essential urban services, with a strong focus on water supply, wastewater management and solid waste systems. The overall objective is to strengthen the resilience of cities and critical infrastructure to climate change through structured and targeted investments. As of January 2026, the portfolio of KfW includes ongoing works worth approximately €1.57 billion, with a pipeline of around €900 million. Financing is implemented through national and state-level programmes as well as financial intermediaries, supporting initiatives in urban infrastructure innovation, sanitation improvement, stormwater management and technology-driven water supply systems.
Within this framework, KfW applies a comprehensive set of assessment parameters, while evaluating financing proposals. Projects are required to demonstrate a detailed feasibility report that integrates resilience at the design stage and incorporates value-added financing elements and innovation. This includes a detailed project report covering social and environmental considerations as well as lifecycle costs. There is also an assessment of realistic implementation timelines and a clear technical and financial feasibility analysis that evaluates multiple project options and end-to-end solutions for their execution. Emphasis is placed on sustainability and climate impacts, quality and safety standards and alignment with the international environmental and social frameworks. Procurement strategy is also a key consideration, requiring fair and competitive processes, in line with KfW procurement rules. In addition, projects must have the necessary approvals in place, ensure land availability with the implementing agency and demonstrate strong implementation capacity, including occupational health and safety systems, to ensure effective and sustainable execution.
Future outlook
Long-term sustainability is emerging as the central objective in urban water infrastructure development, requiring a shift from asset creation to sustained service delivery that ensures reliable water supply, sewerage management and treatment services. This transition calls for customer-centric, integrated systems supported by real-time monitoring, appropriate tariff structures, improved collection efficiency, effective grievance redressal mechanisms and continuous capacity building of ULB personnel. The prevailing build, neglect and rebuild cycle must be replaced with preventive maintenance backed by planned O&M budgets.
In this context, design-build-(finance)-operate-transfer model and performance-based contracts, including an O&M period of 10 years, are becoming increasingly important in ensuring continuity and performance in water infrastructure. Environmental and social considerations also need to be systematically integrated across all projects, irrespective of the financing source, to mitigate long-term environmental risks and enhance community outcomes. Simultaneously, innovation is playing an increasingly significant role in the sector, with a growing start-up ecosystem offering solutions in leak detection, wastewater reuse, treatment efficiency and system monitoring. However, these innovations must be effectively mainstreamed into utility operations to deliver system-wide impact across the sector. Most importantly, regulation of water is also critical for valuing it as an economic resource.
(Disclaimer: Views expressed are personal.)
