
Karnataka moves to digitally secure its lakes, geotags over 31,000 waterbodies
As of April 2025, as many as 31,033 waterbodies were geotagged. Locals and panchayats are pitching in, turning conservation into a community mission. With this, the govt can track real-time updates, including water flow and encroachments.
Till April, the state had surveyed and mapped 34,651 lakes spanning 7.7 lakh acres. In the process, it identified 42,678 acres of lake encroachment; of this, 28,750 acres have been cleared and restored, while the remaining are in the process of being recovered.
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Among the districts, Hassan has the highest number of geotagged waterbodies so far, while Ballari has the least. Community participation has played a key role in ensuring the project's process, with gram panchayats helping in identifying lake boundaries, resolving local disputes, and validating field data.
Legal enforcement has also been made easier through geotagging. When encroachments are detected using this data, the authorities concerned fine those responsible.
Integrated approach
The geotagged data is being used to support drought resilience and groundwater recharge planning, and aligns with the Karnataka State Action Plan on Climate Change (KSAPCC), the Bengaluru Climate Action & Resilience Plan (BCAP), and the World Bank's water resilience project. Officials say this integrated approach will help the state strengthen flood-control measures, improve water storage, and secure long-term water availability across urban and rural areas.
Once the project is completed, officials will be updating the data daily, ensuring that the govt always has access to the latest status of each lake. This allows for accurate water allocation, prioritisation of lake rejuvenation, and seasonal monitoring for sustainable resource use. The mapped data is also being used to plan desilting operations, bund strengthening, and tracking of seasonal changes.
The software deployed to manage the project is ArcGIS, featuring a comprehensive set of capabilities, apps, and tools for drawing insights from location information. Officials are leveraging Geographic Information System (GIS) tools and high-resolution satellite imagery to track physical changes to lakes over time, including boundary shifts and declining water levels.
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