bids are invited for custom bid for services - sweeping cleaning picking of garbage coaldust grit scrap from store pd section cycle stand compressor room shed floor yards railway track pathway between tracks road and associated area and disposal at nominated place of tot.. , custom bid for services - sweeping cleaning mopping of office rooms labs canteen toilets urinals wash basins with adequate disinfectant and cleaning agent of total qty 102537475 sq ft , custom bid for services - collections of mixed scrap released material from shed yard of wcc dry and segregation of mixed materials and stacking item wise for lot formation at nominated place of total qty 5256 mt total quantity :