Design, Supplying, Laying, Testing, Construction And Commissioning Of Sewer Networks, Collection Well, Pump House, Pump Sets, Transformer And Manholes Etc And Allied Works Uidf Sewerage Management Proposal For Thiruvananthapuram Corporation Area Cluster Area Cluster 1 Zone 1 Ambalathara Part, Attukal Part And Zone 5 Part 1 Ambalathara Part