The urban water sector in the country is undergoing a sea change amid rising demand, rapid urbanisation and increasing pressure on water resources. In response, the central and state governments are investing heavily in water supply and wastewater infrastructure, including water transmission and distribution networks, pumping stations, and water and wastewater treatment facilities.
One of the key shifts in recent years has been the increasing emphasis on wastewater treatment and reuse. New sewage treatment plants (STPs) are being designed to treat wastewater and facilitate its reuse, particularly for industrial purposes. This approach supports the concept of circular water management, where treated wastewater is viewed as a valuable resource that can help reduce pressure on freshwater sources. Cities such as Chennai have demonstrated the viability of this model, where treated wastewater is supplied to industrial consumers, creating an additional revenue stream for utilities. With the growing adoption of wastewater reuse models across states, urban water infrastructure in India is increasingly shifting towards systems that emphasise digital deployments, engineering, procurement and construction (EPC) project execution efficiency, sustainability and private participation. This transition is enabling cities to move beyond conventional water and wastewater management practices towards more integrated and resilient urban water systems.
Recent growth trajectory and project execution
Urban water infrastructure development in India has witnessed significant expansion over the past two decades, driven by strong policy support and rising public investment in water supply and wastewater systems. As a consequence, the water sector has evolved from a relatively conventional infrastructure domain to one that increasingly relies on modern construction practices and advanced engineering approaches.
This transformation has also reshaped modern construction under the EPC mode. Project execution has gradually moved away from traditional construction practices towards more technology-driven and integrated implementation models. Technological interventions are now playing a greater role in project planning, design and execution, enabling better coordination among various stakeholders involved in urban water infrastructure projects. EPC contractors, consultants, utilities and government agencies are increasingly collaborating to improve project delivery and ensure that infrastructure systems are designed to meet long-term urban requirements.
A major factor driving the expansion of urban water infrastructure is the persistent gap between water demand and supply in cities. Rapid urbanisation and population growth have placed significant pressure on existing water systems, many of which were designed decades ago and are no longer capable of meeting current demand. Substantial investments are, therefore, required across the entire water value chain, including raw water sourcing, treatment capacity, transmission pipelines and distribution networks. Many cities continue to face gaps in service coverage and reliability, prompting governments to prioritise large-scale infrastructure upgrades and capacity enhancement. In this context, the pace of project execution is likely to accelerate further as cities work to bridge existing infrastructure gaps, and improve service delivery.
Against this backdrop of rising investment needs and accelerated project execution, the adoption of advanced digital tools is becoming increasingly important to ensure that complex urban water projects are delivered efficiently and on schedule. To this end, advanced project management softwares and digital monitoring tools are being adopted to improve planning, coordination and tracking of project activities. These tools enable project developers to monitor construction progress in real time, identify potential delays and make timely adjustments to project schedules. By providing better visibility into project performance, digital platforms help EPC contractors and utilities manage complex infrastructure projects more effectively. Technology adoption is improving coordination among project stakeholders by enabling consultants, contractors and government agencies to share information efficiently and address issues in real time. This enhanced collaboration helps reduce delays caused by miscommunication and fragmented decision-making.
Deployment of digital tools
Digital technologies are increasingly being deployed to enhance the efficiency and reliability of urban water systems. Utilities are integrating sensors, smart meters and automation networks across water transmission and distribution infrastructure to monitor leakages, maintain optimal pressure levels and improve overall network performance. Artificial intelligence (AI)-based systems are also being used to enable predictive and preventive maintenance of critical assets such as pumps and desalination equipment, helping utilities anticipate maintenance requirements and reduce operational disruptions.
Centralised monitoring platforms are emerging as a key feature of these digital deployments. Through remote monitoring systems and control rooms, operators can oversee multiple project sites simultaneously, analyse operational data and take timely corrective actions. Data collected through field devices such as level transmitters, flow meters and internet of things (IoT)-enabled sensors is transmitted through remote terminal units to central servers, where it is analysed using advanced software tools. Technologies such as digital twins are also being adopted to create virtual models of water networks, allowing utilities to compare real-time system performance with ideal operating conditions and identify potential faults or inefficiencies. Further, at the design stage, digital tools such as building information modelling (BIM), 3D design and modelling techniques are gradually being introduced to improve project planning and coordination. These platforms enable integrated design across civil, mechanical and electrical systems, allowing early detection of conflicts between utilities and reducing construction risks. Data analytics is also being increasingly used to analyse historical operational data and forecast system behaviour under different conditions.
Furthermore, digitalisation is extending to customer service and billing systems, with utilities introducing mobile applications and digital payment platforms to streamline grievance redressal and tariff collection. Although the adoption of these technologies in the urban water sector is still evolving, there is growing recognition that digital tools must be integrated into project design and tender processes from the outset to maximise their long-term benefits.
Financial feasibility of treated wastewater reuse
The growing focus on wastewater reuse highlights the need for a more integrated approach to urban water management. Planning for city water systems should not be limited to the development of water supply infrastructure such as water and wastewater treatment plants, pumping stations, and distribution networks. It must also incorporate strategies for wastewater management, including treatment, reuse, and long-term operation and maintenance (O&M). In many cases, while capital expenditure for infrastructure development is supported by multilateral agencies or government funding, municipal corporations often struggle to meet the recurring operational expenditure required to sustain these systems.
Therefore, for planning urban water infrastructure, a long-term perspective that considers not only the development of assets but also their financial sustainability is essential. Integrating wastewater reuse into system design can help utilities generate additional revenue streams while reducing pressure on freshwater resources. However, achieving this requires early-stage planning, particularly in relation to network design and pipeline connectivity. Without provisions for dual distribution or reuse networks, cities may face difficulties in integrating recycled water supply at a later stage.
Even partial utilisation of treated wastewater can significantly enhance water resource efficiency. Diverting a portion of recycled water for non-potable applications such as industrial use or landscaping can help preserve freshwater supplies for essential domestic purposes. While national programmes, such as the Atal Mission for Rejuvenation and Urban Transformation (AMRUT), continue to support investments in urban water infrastructure, there is a growing need for coordinated and integrated planning across multiple urban local bodies (ULBs) at the state level to fully realise the potential of wastewater reuse and sustainable water management.
Rise in private sector involvement
Public-private partnership (PPP) models have emerged as an important mechanism for strengthening urban water infrastructure in India. Over the past two decades, major central government programmes such as the Jal Jeevan Mission (JJM), AMRUT and the Swachh Bharat Mission, have significantly expanded investments in the sector, largely in response to rapid urbanisation and the growing demand for reliable water services. These initiatives have supported capacity enhancement across cities through the construction of reservoirs, treatment plants and distribution networks, as well as the rehabilitation of ageing infrastructure.
Within this framework, PPP models have enabled greater participation of private operators in the O&M of urban water systems. These partnerships typically involve financial contributions from the central and state governments, along with investments from ULBs and private operators. Under such arrangements, private players are responsible not only for infrastructure development but also for operations, service delivery and revenue management, thereby shifting the focus from basic water supply to comprehensive water cycle management.
This approach encompasses the entire value chain, including raw water sourcing, treatment, storage, distribution and billing. In addition to improving service delivery, PPP contracts introduce structured mechanisms for tariff collection and financial management, often supported by escrow arrangements that ensure secure revenue flows for project operators. Such frameworks aim to balance the interests of all stakeholders by ensuring reliable services for consumers while maintaining financial sustainability for utilities and private partners.
The 24×7 water supply project in Nagpur is a notable example of the potential of PPP models. Since its implementation, the project has significantly reduced the city’s non-revenue water, from 67 per cent to 31 per cent, through network rehabilitation, improved metering and enhanced monitoring systems. While challenges related to infrastructure upgrades, financial viability and institutional coordination remain, PPP models continue to play a critical role in improving urban water service delivery and operational efficiency across cities.
Sludge reuse and sustainable initiatives
Urban utilities are increasingly focusing on sustainability measures that integrate wastewater reuse, energy efficiency and resource recovery. An important aspect of this shift is the growing emphasis on incorporating recycle and reuse as a core component of urban water planning. However, effective implementation requires stronger collaboration between utilities and end-users such as industries and irrigation agencies to ensure consistent demand for treated wastewater.
Energy efficiency is also becoming a key priority in wastewater treatment infrastructure. Projects such as the 215 million litre per day STP at Bhandup, Mumbai, are incorporating energy recovery systems that utilise sludge generated during treatment to produce biogas and electricity. While poor sludge quality may limit full energy recovery, such systems can still generate a significant share of the plant’s power requirements, with the remaining energy needs being met through renewable energy sources. This combination can substantially improve the sustainability of wastewater treatment operations. In addition, efforts are being made to promote sludge reuse as a valuable by-product of treatment processes. Initiatives to produce high quality sludge, meeting United States Environmental Protection Agency class A standards, represent an important step towards enabling its safe use in soil applications. Such approaches highlight the broader concept of resource recovery, where wastewater treatment plants generate not only treated water but also reusable by-products such as energy and soil conditioners.
Alongside, there is an increasing emphasis on integrating sustainability considerations into urban water infrastructure development. Community engagement, environmental safeguards and climate resilience are now being incorporated more systematically into project planning and execution. Besides, the water sector is witnessing the adoption of advanced treatment technologies and more efficient plant designs that optimise land use and reduce life cycle costs. As O&M responsibilities often extend over long concession periods, utilities and EPC contractors are increasingly prioritising solutions that ensure long-term operational efficiency and sustainability. Collectively, these measures are helping urban water utilities transition towards more resilient and resource-efficient wastewater management systems.
Stormwater drainage and urban flooding
Urban flooding has become an increasingly frequent challenge in many cities due to the growing impacts of climate change and rapid urbanisation. Coastal regions are experiencing more frequent flash floods, while hill states are witnessing cloudbursts and landslides. These events highlight the need for cities to strengthen stormwater drainage (SWD).
To tackle this, governments are initiating dedicated projects aimed at disaster management and flood mitigation, particularly in vulnerable coastal and hill regions. Advanced technologies, such as AI, are being deployed to support early detection and warning systems for floods, landslides and cloudbursts. These systems enable authorities to monitor potential risks and improve emergency response capabilities. Such initiatives are already being implemented in states like Himachal Pradesh and Uttarakhand, while flood management projects are being undertaken in cities like Mumbai and Chennai.
Furthermore, strengthening urban SWD infrastructure remains critical to reducing flood risks. Rapid urban expansion has increased pressure on existing drainage networks, making it essential to develop well-planned underground systems for stormwater and sewerage management. Proper channelisation of rainwater through robust drainage networks, designed to accommodate future urban growth, can significantly reduce the risk of urban flooding in the years ahead.
Key challenges
Despite a positive outlook, urban water projects face execution challenges, primarily driven by stringent and highly optimistic project timelines. In many cases, project schedules are influenced by political priorities and public expectations, placing significant pressure on utilities, consultants and EPC contractors to complete projects within tight deadlines. While ambitious timelines can accelerate implementation, they often lead to operational challenges when projects encounter unforeseen delays.
Urban water infrastructure projects typically involve multiple stakeholders across planning, design, approvals and construction phases. Coordination among various government departments, regulatory authorities, utilities and contractors can sometimes slow down decision-making processes. Additionally, issues related to land acquisition, securing right of way for pipeline networks and obtaining statutory approvals can further hold up project implementation. Although policy frameworks and administrative processes have improved over time, these challenges continue to affect project timelines in several cases. To address these constraints, the sector is increasingly turning to technology-driven solutions that can support more efficient project management.
The way forward
India’s urban water sector must adopt a more resource-efficient and integrated approach to address the growing pressures of population growth, urbanisation and industrial expansion. With nearly 16 per cent of the world’s population but only about 4 per cent of global freshwater resources, the country faces significant constraints in ensuring long-term water security. Much of the fresh water received through rainfall and snowfall eventually flows into the sea, while only a limited share is stored in underground aquifers. Events such as the severe drought in Latur, Maharashtra, highlight the extreme vulnerability of many regions to water shortages and underscore the urgent need for sustainable water management strategies.
Going forward, preserving freshwater resources while promoting multiple uses of water will be critical. Greater investments in wastewater treatment and reuse infrastructure will play a key role in reducing the pressure on primary freshwater supplies.
Simultaneously, cities are diversifying water sources to strengthen resilience with initiatives such as seawater desalination, wastewater reclamation, and the development of energy-neutral treatment plants gaining momentum. Improving operational efficiency remains a priority, with greater focus on reducing non-revenue water through leak detection, smart network management and the implementation of 24×7 water supply systems. With strong policy support and increasing investments, the urban water sector is expected to witness substantial infrastructure development.
Based on a panel discussion among key industry experts from Orange City Water, Veolia India, TCE, JWIL Infra, Pimpri Chinchwad Municipal Corporation, and VA TECH WABAG at a recent India Infrastructure conference.