Three firms submits bids for implementation of Virudhunagar 5 mld ZLD CETP Project in Tamil Nadu September 11, 2026 | Key Segments, Municipal Wastewater, Project Bidders, Project Updates, Wastewater Three firms have submitted bids for the implementation of Virudhunagar 5 mld ZLD CETP Project in Tamil Nadu. These include; … This content is restricted.