This document discusses municipal wastewater reuse potential for irrigation in Madurai City, India. It begins with background on global and local water demand trends. Municipal wastewater generation is projected to increase in Madurai from 162.8 MLD currently to 338.7 MLD by 2044. The document estimates this wastewater could irrigate 3000 hectares of crops currently, increasing to 6000 hectares by 2044. It reviews wastewater reuse practices worldwide and in India. Treatment methods like septic tanks and constructed wetlands are discussed.