Work commences on Sewerage and SWD Project in ABD area of Muzaffarpur, Bihar January 4, 2022 | Municipal Wastewater, Ongoing, Project Updates, Wastewater The sewer line laying work under the sewerage and stormwater drainage (SWD) Project in area based development (ABD) area of Muzaffarpur commenced on January 1, 2022. This content is restricted.