Excavation of Overburden of First Dig (Solid) by Mechanical Means such as Excavators, Dumpers/Tippers, Drills, Dozers, Graders and Water Sprinklers for Composite work Consisting of Blast Hole Drilling, Excavation, Loanding, Transportation of Broken Rocks/Soil/Earth, Unloading/Dumping, Spreading, Dozing, Water Sprinking and Grading etc. as per Instruction of Engineer-in-charge at Specified Places at Nigahi OCP of NCL, Singrauli, MP