Operation And Maintenance Of Under Ground Drainage Scheme In All Respect That Is All The Components Executed Under This Tender Mainly Pumping Machinery, Pumping Station ,Pumping Main, Including Establishment Charges And All Materials On Repairing Of Pipe Line And Other Civil Works And Pumping Machinery As Per The Detailed Specification And Obligatory Requirements For Twelve (12) Months Including Disposing Of Sewage And Satisfactory Maintaining The Record For Same (Excluding Power Cost) Maintenance For All Pumping Station In Projects. (Third Call)