All kind of earthworks (Roads, trenches, remidial works) it include site preparation, grubbing and clearing, ductbanks, drainage,culvert, ditches, excavation of rock, soil, subkha, trenches, inspection of under ground utilities, installation of pipes, cable laying, trust boring, dewartering, cuting and filling, supply and disposal of material, general backfill, selected fill, filling behind retaining wall, grading, compaction, testing, restoration of site.

Works such as paving, pouring of concrete, building of housing, multi-story buildings and other infrastructure works, tiles works, structural demolition and its maintenance.

Include all construction activities of Highways, Service Roads, Access Roads, and making of its shoulders, embankment, slope preparation, trimming, grading, subbase, basecourse, asphalt works, and its maintenance.

Include all construction activities of Runway, taxiway, Service roads, Access roads, Apron, access for Aircraft movements, temporary roads, fencing and barricades, sign boards.

Include construction of bridges for Highways and other Roads, Flyover for road crossing, culvert, Duct bank, and its maintenance.

Include construction and maintances of under ground passage, channels, ditches, drainage, thrust boring, de-watering and shoring work.

For dams and pools, dredging, breakwaters, jetties, docks, piers, revetments.