CMWSSB commences underground sewerage work in Jalladianpet, Tamil Nadu March 6, 2024 | Key Segments, Municipal Wastewater, Ongoing, Project Updates, Wastewater The Chennai Metropolitan Water Supply and Sewerage Board (CMWSSB) has commenced laying of a pipeline for underground sewerage project at Jalladianpet in Shollinganallur Zone (Zone 15) in Tamil Nadu. This content is restricted.