India generates 72,000+ MLD of used water daily, but only 28% is treated, intensifying pressure on rivers, aquifers, and urban water security. Despite national mandates prioritising treated used water (TUW) reuse, treatment and reuse remain at only 30% across Class I & II towns. Small towns, growing rapidly yet constrained by weak systems and fragmented governance, need a structured framework to assess and operationalise TUW reuse. The Treated Used Water Reuse Readiness Framework (TUW-RRF) provides a structured, three-stage process to help towns identify gaps, prioritise actions, and plan safe and viable treated used water reuse. It maps town characteristics (land use, topography, climate risks) and identifies priority demand centres across municipal, residential, commercial, institutional, agricultural, environmental, and industrial sectors, within and around the town, to determine where reuse makes most sense.