providing sewage treatment plants (stps) at the locations of 1)jakkampudi i (a) ( 0.90 mld) in vijayawada ulb, 2) jakkampudi ii (b) ( 0.60 mld) in vijayawada ulb, 3)jakkampudi iii (c) ( 0.90 mld) in vijayawada ulb, 4)jakkampudi iv (d) ( 0.90 mld) in vijayawada ulb (total 3.30 mld) in krishna district of deputy chief technical officer, guntur 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)