Survey for ground levels and top levels. Excavation to approved depth. Dressing of loose soil. Interconnecting trenches and constructing dewatering wells, Setting out of corner benchmarks. Survey for ground levels and top levels, Excavation to approved depth. Dressing of loose soil, Making up to the cut-off level, Interconnecting trenches and constructing dewatering wells, Marking boundaries of the house, Building protection bunds & drains.