In the third decade of the 21st century, water security has evolved from a localized utility concern into the primary governance and sustainability crisis defining the survival of the modern megacity. We have entered the Age of Intelligence, where the resilience of rapidly urbanizing metropolises no longer rests solely on the expansion of physical concrete and steel, but on the sophistication of digital layers that manage them. For a city like Bengaluru, a global hub of innovation facing acute climate stress and explosive growth, the transition to an intelligent water system is a strategic imperative.

Bengaluru serves as a “living laboratory” for next-generation water innovation. Its unique high-altitude geography, located nearly 900 meters above sea level and 86 kilometers from its primary river source, creates a hydraulic and energy challenge unlike any other in the world. The National AI Summit on Water 2026 marks a decisive turning point for Indian urban utilities. It signals the end of the “infrastructure provider” era and the dawn of the data-driven public service system.

This digital leap is built upon the robust historical foundations of the Bengaluru Water Supply and Sewerage Board (BWSSB). Established in 1964, the Board’s legacy of engineering ambition provides the necessary bedrock for AI-enabled governance. By integrating decades of infrastructure expertise with real-time analytical precision, BWSSB is setting the global standard for how a legacy utility can transform into an agile, predictive steward of urban life.

BWSSB’S INFRASTRUCTURE LEGACY AND URBAN SCALE

Effective AI deployment is not an abstract exercise; it requires a granular understanding of the physical scale it intends to optimize. In a city as complex as Bengaluru, the sheer magnitude of the network determines the complexity of the algorithms required. Since its inception in 1964, the BWSSB has managed a mandate covering the 800 sq. km Bruhat Bengaluru Mahanagara Palike (BBMP) area, encompassing the core city, eight urban local bodies, and 110 recently integrated villages.

The progression of Bengaluru’s supply is a testament to large-scale engineering. From the initial 1896 Hesserghatta system to the 1933 Chamaraja Sagar (Thippagondanahalli) reservoir on the Arkavathi River, the city eventually looked toward the perennial Cauvery River. Through the successive execution of the Cauvery Water Supply Schemes (Stages I–V), the Board has constructed a massive transmission system to lift water across challenging terrain.

Strategic Scale Summary

• Resident Reach: Serving a burgeoning population of 14+ million people.
• Resource Management: A current supply of 1,450 MLD (Million Liters per Day) from the Cauvery source against a total installed capacity of 2,293 MLD.
• Network Complexity: An extensive network featuring 14,000 km of water distribution lines and 12,000 km of sewer networks.
• Operational Footprint: Management of 10.15 lakh house service connections and 57 ground-level reservoirs (GLRs) with a combined capacity of 885 ML.

The urgency for an AI-driven shift is most apparent in the “Shortfall in Demand” metrics. According to the Board’s population projections (Table 4), the city’s population will reach 20.5 million by 2051, driving water demand to 52.86 TMC (4,100 MLD). While the shortfall in 2011 was 450 MLD, it is projected to balloon to a staggering 2,650 MLD by 2051. Bridging this 2,650 MLD gap cannot be achieved through traditional supply expansion alone; it requires a digital ecosystem capable of maximizing every drop through efficiency.

BEYOND PIPES AND PUMPS: BUILDING AN INTELLIGENT WATER ECOSYSTEM

The strategic evolution of BWSSB involves a fundamental shift from reactive maintenance—responding to bursts and failures—to proactive, digital governance. This “digital water” framework is composed of integrated layers that transform raw infrastructure into a sentient network:

Geographic Information System (GIS): The Board has achieved 100% network mapping. This creates a comprehensive digital twin of all water supply and wastewater pipelines, enabling advanced data-driven planning and precise maintenance interventions across all operational levels.

Integrated Pumping Performance Management System (IPMS): As one of the world’s most energy-intensive utilities, BWSSB monitors 78 pumping units across five locations with nearly 80 MW of installed capacity. By leveraging IIoT and AI-driven energy optimization, the Board has identified an annual energy-saving potential of 6.8 crore kWh, representing an annual cost saving of ₹42.43 crore.

Centralized SCADA: Supported by the Japan International Cooperation Agency (JICA), BWSSB operates Asia’s largest AI-powered command center. This system facilitates real-time monitoring of both water and sewerage networks, providing demand forecasting and rapid leak detection. Its primary achievement is the reduction of Non-Revenue Water (NRW) from a high of 51% in 2013 to a projected 27% by 2025.

Citizen-Centric Digital Service Table

THE AI FRONTIER: ORCHESTRATING THE NEXT-GEN UTILITY

At the National AI Summit, we define AI not as a replacement for human engineering, but as an “amplifier of efficiency” capable of mastering mega-city hydraulics. Under the “Vision 2030 in AI Sector” roadmap, the Board is deploying specific technologies that turn the “laboratory” of Bengaluru into a global model.

A critical component is Predictive Analytics for leakage management. By deploying “L-sign” leakage detection and Helium Gas Based Hidden Leak Detection technology, the Board can identify subterranean fissures that traditional acoustic methods miss. Furthermore, AI and IoT-based groundwater analytics are currently identifying potential water scarcity risks across 65 specific wards, allowing for hyper-local interventions before a crisis manifests.

The rollout of AI-enabled Smart Metering for 1 lakh ND (Non-Domestic) and HR (High-Rise) connections provides real-time consumption tracking and automated alerts. This data feeds into the “Digital Twin” – a fusion of GIS, SCADA, and IoT sensors, that creates a virtual city-wide model for flood-risk simulation and climate-resilient planning.

For utility managers, the primary value proposition is the optimization of the energy-water nexus. AI-powered analytics optimize pump efficiency and aeration systems, providing seasonal energy forecasting that supports BESCOM (Electricity Board) grid planning. By stabilizing energy demand, the Board ensures that the city’s water supply remains resilient even during peak power grid stress.

WASTEWATER, REUSE, AND CIRCULAR WATER THINKING

In the framework of the Circular Economy, wastewater is no longer viewed as a liability but as a high-value resource. This is central to Bengaluru’s survival as a landlocked city. The current sewerage ecosystem manages 34 STPs with a capacity of 1348.5 MLD, using advanced technologies including Activated Sludge Process (ASP), Sequential Batch Reactor (SBR), and Membrane Bio-Reactor (MBR). To meet future needs, 36 upcoming STPs are under development, adding 1,015 MLD in treatment capacity.

Sustainability and Policy Outcomes

• Environmental Action Plans (EAP): The Board is executing a multi-phase strategy to achieve “Zero Flow” into

POWERING THE FUTURE OF WATER THROUGH AI & DIGITAL INNOVATION

L&T’s Water & Effluent Treatment business has been delivering transformative water infrastructure across India and global markets improving lives through sustainable, future-ready solutions.

Today, we are accelerating this transformation through AI and digital innovation.

Across engineering, project execution, supply chain, and operations, advanced technologies are enabling faster decisions, smarter execution, and enhanced project outcomes. AI-driven design optimization, automated BOQ extraction, BIM-enabled clash detection, drone-based monitoring, IoT-led site intelligence, computer vision for safety and quality surveillance, and analytics-driven project controls are creating a connected and intelligent delivery ecosystem.

Our indigenously developed digital solutions include Digital Twin platforms for leak detection and efficient plant operations, IoT-based large water management systems enabling efficient water usage for agriculture, GIS-enabled smart operation and maintenance applications for NRW management, and Augmented Reality solutions for advanced utilities management.

Our digital platforms are strengthening supply chain visibility, while AI-powered vendor evaluation and smart procurement systems are improving reliability, efficiency, and performance across projects.

Backed by world-class engineering expertise, cutting-edge digital capabilities, and highly skilled project teams, L&T’s Water & Effluent Treatment business is redefining the future of water infrastructure while delivering smarter, safer, and more sustainable solutions at speed and scale.

100 MLD GIDC Desal Plant, Gujarat

L&T Construction-Water & Effluent Treatment 9th Floor, C-Wing, TC-4, Mount Poonamallee Road, Manapakkam, PB. No. 979, Chennai – 600089, India Tel: 044-2252 6000, 3319 4040 Fax: 044-3319 4949 E-mail: info@Lntecc.com

storm-water drains. EAP-A rehabilitated 33 km of sewers, increasing STP inflow by 40 MLD. EAP-B, with a revised project cost of ₹495 crore, targets the rehabilitation of 70 km of trunk sewers to divert 150 MLD of wastewater away from lakes like Bellandur and Varthur and toward treatment facilities.

• Biogas and Energy Recovery: Five STPs currently generate 30,000 cubic meters of biogas per day, yielding 4.5 MW/hour of power, significantly offsetting the utility’s carbon footprint.
• Resource Recovery: BWSSB has reached a reuse milestone of 825 MLD for environmental and lake recharge, with an additional 30 MLD treated for commercial reuse.

AI-based real-time treatment monitoring ensures that effluent consistently meets CPCB standards for BOD, COD, and TSS. By forecasting biogas and sludge generation from incoming quality data, AI identifies reuse marketplaces, ensuring that the “used water” cycle is as economically viable as the freshwater cycle..

VISION 2050: FROM UTILITY TO SMART WATER STEWARD

The challenges of the next quarter-century are formidable: a 2,650 MLD shortfall by 2051, increasing climate volatility, and the physical limits of the Cauvery River. To address this, the “Vision Document 2050” outlines a roadmap to transition the Board from a traditional utility to a Smart Water Steward.

This transition is governed by a Strategic Master Plan broken into Short, Medium, and Long-Term timeframes. The focus is on a holistic evaluation of all resources, moving toward a model that integrates Rainwater Harvesting (RWH), which has a city-wide potential of 33 TMC into the formal supply. The Board aims to capture 5 to 10 TMC of this through remodeled storm-water drains and recharge shafts.

The three pillars of this 2050 stewardship are:

• Supply Diversification: Moving beyond river-dependency toward a diversified portfolio of recycled water and harvested rainfall.
• Financial Sustainability: Implementing digital transparency and AI-driven billing to recover the capital costs required for infrastructure modernization.
• Adaptive Governance: Utilizing AI for emergency planning, response, and real-time climate adaptation to manage water-related disasters and drought.

BWSSB is no longer merely managing water; it is managing the information and the circular cycles that ensure the city’s continued existence.

THE CONVERGENCE ROADMAP

The future of water security depends on the seamless convergence of traditional infrastructure, granular data, and AI-enabled governance. As Bengaluru continues its trajectory as a global titan of industry and population, the ability to monitor every liter of water and every kilowatt of energy becomes the defining factor of urban stability. BWSSB’s journey, evolving from a 1964 municipal utility into an AI-driven global pioneer, offers a definitive roadmap for rapidly urbanizing cities worldwide.

The future of water security will not depend solely on discovering new water sources, but on intelligently managing every drop through the convergence of infrastructure, data, governance and AI; and BWSSB’s journey offers a compelling roadmap for this transition.

Written by: Dr. Asawari Savant | Elets News Network (ENN)