revamping of 1.2 mld capacity sewage treatment plant and rendering services for operation and maintenance at tnpl unit i housing colony , revamping of 1.2 mld capacity sewage treatment plant (stp) , equipments for revamping of 1.2 mld capacity sewage treatment plant (list & details to be provided in un-priced technical bid) , inter connecting pipes, valves & fittings , motors, power & control cables, tray & its accessories , instrumentation and controls , 2 years maintenance spares for mechanical, electrical & instrumentation , lumsum charges for stp erection & commisioning , total erection & commisioning cost , rendering services for operation & maintenance of 1.2 mld stp plant for the period of one (1) year as per the manpower requirement prescribed in part #4 of the bid document , charges for rendering services for operation & maintenance of 1.2 mld stp plant for the period of one (1) year from the date of completion of commissioning of the plant