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Gouraansh Sethi, a student from The Shri Ram School, created 'Project Piyau,' a greywater reuse system that recycles nearly 1,000 litres of water daily for non-potable uses. The Gurugram Metropolitan Development Authority recognized his work on February 9.

The project began in May 2024 and involved refurbishing 26 bathrooms to test the system. Sethi's initiative aims to reduce fresh water dependency and promote urban water management.