Tenders for Carrying Out Preventive As Well As Breakdown Maintenance Of Chlorine Machines Hydraulic Diaphragm Based Or Other For Ascertaining Disinfection Of Different Rural Piped Water Supply Schemes In The District Of Darjeeling Block- Naxalbari And Matig Wbphed/Ae/Smsd/Niet- 01 Of 2025-2026
