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.

Supply and delivery of spare materials for gasious chlorination arrangement at wtp of 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 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 katatair ohr site (distribution zone-ii) under sub surface water based piped water supply scheme at gangarampur western sector in the district of dakshin dinajpur under malda mechanical di

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

Replacement of electrically gear operated, double flanged cast iron butterfly valve at wtp of sub surface water based piped water supply scheme at tapan western sector in the district of dakshin dinajpur under malda mechanical division p.h.e .dte.