hiring of hemm for removal of ob , extraction and transportation of coal from xv seam of phase iii patch , gopalichuck colliery , pb area , bccl , excavation in benches ( in-situ ) by mechanical means at any depth in all kinds of soil , rock , including mixed soil , mixed hard soil i . e . clay soils mixed with pebbles / laterite / stone boulders , soft or hard rock etc . , removal of slushy earth , mud and slurry as required , loading , transporting and unloading the excavated materials mechanically and disposed off outside the working zone in proper manner including spreading , dozing , lighting , water sprinkling , grading and other ancillary mining activities etc . all complete as per instructions/directions of project officer/ engineer-in-charge . the job involves making access trench/haul roads , dozing , grading as required for excavation operation and for transportation of excavated materials etc . , all complete . ( blasting shall be done by department free of cost , as and when required . supply of explosives , detonators and related materials will be made available by bccl and the services of statutory supervisory personnel as required for the work will be provided as and when considered necessary by the management free of cost . ) carriage lead : ( 0-1 ) km from face to dump/in-pit dump . , excavation in benches ( in-situ ) by mechanical means at any depth in all kinds of soil , rock , including mixed soil , mixed hard soil i . e . clay soils mixed with pebbles / laterite / stone boulders , soft or hard rock etc . , removal of slushy earth , mud and slurry as required , loading , transporting and unloading the excavated materials mechanically and disposed off outside the working zone in proper manner including spreading , dozing , lighting , water sprinkling , grading and other ancillary mining activities etc . all complete as per instructions/directions of project officer /engineer-in-charge . the job involves making access trench/haul roads , dozing , grading as required for excavation operation and for transportation of excavated materials etc . , all complete . ( blasting shall be done by department free of cost , as and when required . supply of explosives , detonators and related materials will be made available by bccl and the services of statutory supervisory personnel as required for the work will be provided as and when considered necessary by the management free of cost . ) carriage lead : ( 1-2 ) km from face to dump . , winning / extraction of coalin benches from available coal seams at any depth , blasting ( blasting shall be done by department free of cost . supply of explosives , detonators and related materials will be made available by bccl and the services of statutory supervisory personnel as required for the work will be provided as and when considered necessary by the management free of cost . ) including mechanical loading of coal ( free from extraneous materials ) into tippers / dumpers including removal of slushy earth / slurry and removal/ segregating/picking and removal of unwanted band stones / extraneous materials , lighting , water sprinkling , dozing , grading , and other ancillary mining activitiesandtransportation of coal ( free from extraneous materials ) from face to surface dump complete job as per instructions/directions of project officer/ engineer-in-charge . the above job also involves making and maintenance of access trench / haul road , dozing , grading and all other allied jobs required to accomplish the entire operation of winning / extraction and transportation of coal . carriage lead: ( 0-1 ) km from face to surface dump , drilling in coal and ob by mechanical means at any depth in all kinds of soil , rock , including mixed soil , mixed hard soil or hard rock , coal etc . water sprinkling , dozing and other ancillary mining activities etc . all completeas per instruction of project officer/ engineer-in-charge . , total impact of gst for the purpose of ctc