The Project Implementation Unit, Kollam, KSUDP (the Employer) invites sealed bids for the construction and completion of Design, Construction, Erection, Testing and Commissioning and Operation and Maintenance for a period of 5 years after commissioning, on turn-key basis, Sewage Treatment Plant of 12 MLD capacity on Activated Sludge Process with Extended Aeration System or Moving Bed Bio Reactor (MBBR) Technology, for Kollam Corporation, Kollam, Kerala India (the Facilities).