providing sewage treatment plants (stps) at the locations of 1)sonia nagar (0.50 mld) in vizianagaram ulb 2)nellimarla (0.30 mld) in nellimarla ulb 3)bobbili (0.80 mld) in bobbili ulb 4) saluru (0.60 mld) in saluru ulb 5) parvathipuram (0.40 mld) in parvathipuram in vizianagaram district and 6) kancharam (0.20 mld) in rajam 7) byrsastrullapet (0.30 mld) in amadalavalsa in srikakulam district (total 3.10 mld) of deputy chief technical officer, visakhapatnam circle, aptidco, developed affordable housing projects in andhra pradesh on design, engineering, construction, supply, installation, testing, erection and commissioning and thereafter operate and maintain the stps for 5 (five) years basis (including defect liability period of two years from the date of completion of project)
