Operation and maintenance of distribution system including rising main and fhtc for achintyanagar (zone-i, ii) piped water supply scheme of pathar pratima block under kakdwip sub-division of alipore division, phe dte. (for 365 days)

Operation and guarding of gaseous chlorination arrangement at nildanga ohr site (distribution zone-iv) under sub surface water based piped water supply scheme at gangarampur western sector in the district of dakshin dinajpur under malda mechanical

Operation and guarding of gaseous chlorination arrangement at sahabazpur ohr site (distribution zone-v) under sub surface water based piped water supply scheme at gangarampur western sector in the district of dakshin dinajpur under malda mechanical d

Operation and guarding of gaseous chlorination arrangement at paton ohr site (distribution zone-iii) under sub surface water based piped water supply scheme at gangarampur western sector in the district of dakshin dinajpur under malda mechanical divi

Operation and guarding of gaseous chlorination arrangement at kathalhat hossainpur ohr site (distribution zone-i) under sub surface water based piped water supply scheme at gangarampur western sector in the district of dakshin dinajpur under malda

Operation and guarding of gaseous chlorination arrangement at noagaon ohr site (distribution zone-ii) under sub surface water based piped water supply scheme at tapan western sector in the district of dakshin dinajpur under malda mechanical division

Operation and guarding of gaseous chlorination arrangement at bhair ohr site (distribution zone-v) under sub surface water based piped water supply scheme at tapan western sector in the district of dakshin dinajpur under malda mechanical division p.

Operation and guarding of gaseous chlorination arrangement at water treatment plant under sub surface water based piped water supply scheme at gangarampur western sector in the district of dakshin dinajpur under malda mechanical division p.h.e .dte.

Operation maintenance and guarding of gaseous chlorination plant at deuli zone-i ohr site under raghunathganj surface water based w_s scheme dist_murshidabad

Operation, and guarding of gaseous chlorination system at ohr site zone g at haroka under chhatna, saltora block sub-surface water based piped water supply scheme (brgf phase-i) under bankura mechanical division, p.h.e. dte. block saltora