Operation, maintenance and guarding of gaseous chlorination plant at ohr zone no- 40 under arsenic affected area surface based water supply project in south 24 pgs district under s.24pgs mechanical division phe dte.

Operation, maintenance and guarding of gaseous chlorination plant at ohr zone no- 26 under arsenic affected area surface based water supply project in south 24 pgs district under s.24pgs mechanical division phe dte.

Operation, maintenance and guarding of gaseous chlorination plant at ohr zone no- 40 under arsenic affected area surface based water supply project in south 24 pgs district under s.24pgs mechanical division phe dte.

Operation, maintenance and guarding of gaseous chlorination plant at ohr zone no- 24 under arsenic affected area surface based water supply project in south 24 pgs district under s.24pgs mechanical division phe dte.

Operation, maintenance and guarding of gaseous chlorination plant at ohr zone no- 40 under arsenic affected area surface based water supply project in south 24 pgs district under s.24pgs mechanical division phe dte.

Operation, maintenance and guarding of gaseous chlorination plant at ohr zone no- 7 nandarampur under arsenic affected area surface based water supply project in south 24 pgs district under s.24pgs mechanical division phe dte.

Operation, maintenance and guarding of gaseous chlorination plant at ohr zone no- 30 and 34 under arsenic affected area surface based water supply project in south 24 pgs district under s.24pgs mechanical division phe dte.

Operation, maintenance and guarding of gaseous chlorination plant at ohr zone no- 16 and 20 under arsenic affected area surface based water supply project in south 24 pgs district under s.24pgs mechanical division phe dte.

Operation, maintenance and guarding of gaseous chlorination plant at ohr zone no- 30 and 34 under arsenic affected area surface based water supply project in south 24 pgs district under s.24pgs mechanical division phe dte.

Operation, maintenance and guarding of gaseous chlorination plant at ohr zone no- 27 and 43 under arsenic affected area surface based water supply project in south 24 pgs district under s.24pgs mechanical division phe dte.