| Sr | Code | Description |
| 1 | BC01 | Construction of buildings and industrial plants using prefabricated components and systems. Construction of steel framed buildings and industrial plants. Airports Terminal buildings, Satellite buildings, cargo terminals, air traffic control towers, contact piers, passenger loading bridges . |
| 2 | BC04 | General Buildings and Maintenance |
| 3 | CE01 | Road and Pavements, Drainage & Retaining Structure, Signcraft Installation. |
| 4 | CE10 | General Civil Engineering Works, Slope Protection System, Concrete Repairs, Soil Investigation and Stabilization, Landscaping & Horticulture, Reclamation Works, General Buildings and Maintenance, Waterproofing. |
| 5 | CE11(ix) | General Building Works |
| 6 | CE04(v) | Irrigation Only |
| 7 | BC02 | Building restoration and conservation |
| 8 | C6 (11) | All types of repair/maintenance works. Minor construction works alongwith allied electrical, mechanical, water supply, sanitary, plumbing works. Minor road works including culverts. |
| 9 | CE09 | Sewerage Works, Water Supply. |
| 10 | CE11(i) | General engineering Works only |
