Investigation, Design & construction of Physical Infrastructure and Social Infrastructure in EWS layouts at Gudiwada, Machilipatnam ULBs in Krishna district and Design, Supply, Construction, Installation, Testing and Commissioning of three (3) Sewage Treatment Plants (STPs) of a total capacity of 6.40 MLD (Gudiwada-Mallayapalem - 4.30 MLD, Machilipatnam-Gosangam - 0.50 MLD & Machilipatnam-Rudravaram - 1.60 MLD) based on any appropriate technology (Technology neutral) with post completion O&M of entire STPs for 7 (Seven) years including 2 (Two) years Defect Liability Period under PMAY-HFA(U) scheme on Lump sum contract (Percentage Tender) (With DLP of 2 years).