Design, Supply, Construction, Installation, Testing and Commissioning of three Decentralized Sewage Treatment Plants (4 MLD-2 Nos & 5 MLD-1 No) based on Open Technology (Technology Neutral) with Terminal Pumping Stations and Inlet works, MCC Panel Room, DG Set, and all contingent Civil, Electrical, Mechanical and Instrumentation works with three months Trial Run and Post Completion Operation & Maintenance of entire three Sewage Treatment Plants for 7 (seven) years including 2 (two) years Defects Liability Period