tender for 4 mld stp- design, construction, erection, testing and commissioning of a fully automatic 4mld mps and stp both plc-controlled with scada, based on sbr technology, disposal of treated effluent through a hdpe pipeline by pumping, electrical, mechanical, piping and instrumentation works, ocems and all other works contingent thereto including 6 years defect liability-cum-oandm period (after 3 months trial run), near mini secretariat. 2mld stp- design, construction, erection, testing and commissioning of a fully automatic 2mld mps and stp both plc-controlled with scada, based on sbr technology, disposal of treated effluent through reinforced cement concrete pipe hdpe lined by gravity, provision of 7mld sludge sump and centrifuge building, electrical, mechanical, piping and instrumentation works, ocems and all other works contingent thereto including 6 years defect liability-cum-oandm period (after 3 months trial run) in the c us of the 5 mld existing stp, samalkha town, district panipat.