Drilling, Excavation, Loading, Transportation, Dumping, Spreading And Levelling, Etc., Of 124.26 Lbcm Of In-situ Ob Which Includes 8.20 Lbcm Of Coal, With Conventional Equipment, And Additional Works Viz., 1000 Shovel Hours, 500 Dozer Hours And 30, 000 Rmt Of Drilling At Manuguru Opencast Project, Manuguru Area During A Period Of 12 Months.