The demand for clean, safe, and hygienic packaged drinking water in Tamil Nadu continues to surge due to rapid urbanization, expanding commercial establishments, hospitality sector growth, and heightened public health awareness. Setting up a water purification and bottling plant offers a steady and scalable business model for entrepreneurs. However, because packaged water directly affects consumer health, the sector involves stringent regulatory compliance, specific quality standards, and systematic operational planning. This comprehensive guide details every stage required to establish and run a profitable packaged drinking water business in Tamil Nadu, from market analysis and legal licensing to machinery selection and distribution