tender for annual operation & maintenance of distribution system and rising main, pipeline, functional house hold tap connection (ac/ci/di/upvc/hdpe) of 1) lalgola 2) habaspur 3) bhandara & 4) habaspur primary health center and operation & maintenance of iron elemination plant of habaspur primary health center & lalgola iep water supply scheme under lalgbagh sub-division under murshidabad division, phe dte. for 1(one) year [ valve operation , repairing of bursting / leakage of lds and rising main , maintenance of valves , cleaning of ohr , carrying chlorine from dept. store to the work site , repairing of functional house hold tap connection , cleaning of ferrules , periodical washing of lds , monthly testing of water etc]