Supply, fabrication and installation of perforated hot dipped galvanised double bended cable trays from 2 mm thick GI sheets continuously connected including horizontal and vertical bends, reducers, tees, and other accessories and duly suspended from the ceiling with 12 mm dia vertical GI rods supported by 40mm x 40 mm x 5 mm GI angle etc (or installed on wall supported on suitable brackets as required) complete as per specifications, as required and as below.