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Amidst the international commitments of nations to sustainable development goal 6 (Clean Water and Sanitation), it is vital for the public utilities to provide an increased coverage of sewerage infrastructure. The choice of an appropriate sewage treatment technology is of utmost significance while planning sewage treatment facilities. The need for sustainable and resilient urban water infrastructure requires addressing the problem from multiple dimensions of technical, economic, social and environmental simultaneously; necessitating the adoption of multi-criteria decision-making techniques. In this regard, JalVishwa is a decision support tool developed at the Centre of Urban Science and Engineering, IIT Bombay and is an application of multi-criteria decision-making in the wastewater sector. The tool is developed as part of the research project 'Innovation Centre for Eco-prudent Wastewater Solutions' funded by the Department of Science and Technology, Government of India. JalVishwa imbibes a holistic planning approach and has the following features:

• Multiple criteria inclusion facilitating holistic decision making.
• Decision making framework encompassing inducators from life cycle thinking
• Flexibility with respect to technology and indicator selection
• Scope of including criteria weighs for scenario-based decision making
• Dynamic life cycle costing tool facilitating location-specific economic assessment
• Guidance to decision-makers towards achieving circular economy in the water sector sector The usage of this freely available tool can aid decision-makers select an appropriate sewage treatment technology, suitable for their cities, thereby ensuring the sustenance of sewage treatment plants. The tool is of great relevance for urban local bodies, planners, practitioners and researchers involved in the implementation of national schemes such as Swachha Bharat Mission, Jal Jeevan Mission, AMRUT 2.0.

The tool can be accessed using the link below: https://jalvishwa-iitb.github.io/ The YouTube tutorials can be accessed on the following link: https://youtube.com/playlist?list=PLhUEOeQI5cNuVk6ZwVWBmc4cMhBs1enPA&si=lKuUAZVSlXI2q41G