Excavation of all types of strata such as alluvium, different types of clay ( grey , Dark Grey , Variegated Fossilififerous , Carbonaceous etc) Ciderite , silica Sand, weathered Limestone of materials including intercalated partings of the above materials, carbonaceous sandstone between Lignite seams and excavation of Lignite with all lead and lift in Gujarat Industries Power Co.Ltd.’s (GIPCL) Lignite mines at Vastan.Ta.Mangrol.Dist Surat.