Annual Maintenance Water Supply Network Duly Arresting Water Leakages Rectification Of Pollution In Water Supply Lines, Clearing Chowkages/ Blockages, Replacement Of Damaged Pipes And Repair And Replacement Of Sluice Valves And Addressing Various Water Supply Grievances For Smooth Functioning Of System For A Period Of One Year Under Katedan Section Sub Division Ii Of Operations And Maintenance Division Xvi .