Gem Bids For Custom Bid For Services - Cleaning And Desilting Of Gully Trap Chamber, Including Removal Of Rubbish As Per Item 1 Of Schedule Of Quantities , Custom Bid For Services - Lifting Of Chamber Cover, Cleaning, Desilting And Removal Of Sludge As Per Item 2 Of Schedule Of Quantities , Custom Bid For Services - Cleaning Of Chocked Sewer Line By Diesel Running Vehicle Mounting Hydraulic Operated As Per Item 3 Of Schedule Of Quantities , Custom Bid For Services - Providing Services Of Belder Cum Sewer Man Equipped With Necessary As Per Item 4 Of Schedule Of Quantities , Custom Bid For Services - Cleaning And Removal Of Dirt, Soiled Material Of Storm Water Drains Manually As Per Item 5 Of Schedule Of Quantities