Tenders for Annual maintenance testing contract Estimate For Sewerage Scheme And 3.60 Mld Stp At Nuh Town For The Year 2021-22 Operation And Maintenance For Various Sizes Sewer Line 150 Mm To 600 Mm I/D, S.W. Pipe, R.C.C. Pipe, . Under Phe Division No.1, Nuh For Nuhtown, Period Of Oandm 36 Months. From The Date Of Allotment