Delhi student's sustainable technology saves 110 Million litres of water Published on August 18, 2021 23:14 by Water Network Research, Official research team of The Water NetworkDelhi student's sustainable technology saves 110 Million litres of water Attached link https://www.republicworld.com/initiatives/har-ek-boond/delhi-students-sustainable-technology-saves-110-million-litres-of-water.html