Civil/Electrical Engineers, Overseers, Surveyors, Supervisors/Foremen, Technical Supervisors (For Carpenter, Welder, Mason etc.) Carpenter, Mason (Plasterer/Tile fixer), Welder, Plumber, Electrician, Painter, Technical helpers, General helpers/labours etc. Scaffolder, Insulator, Sand Blaster, Fabricator, Pipe fitter, Steel fixer, etc. Skilled Labours and other administrative staff