hiring of hemm for removal of ob , extraction and transportation of coal from viii c , viii b , viii a and v/vi/vii ( combined ) seam at muraidih section ( patch 4th a ) , amalgamated muraidihphularitand colliery of barora 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-pit dump in proper manner including spreading , dozing , lighting , water sprinkling , grading and other ancillary mining activities etc . all complete as per instructions/directions of 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 surface/in-pit ob 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-pit dump in proper manner including spreading , dozing , lighting , water sprinkling , grading and other ancillary mining activities etc . all complete as per instructions/directions of 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 surface/in-pit ob dump . , removal of dumped loose overburden by mechanical means 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 & slurry as required , loading , transporting & unloading the excavated materials mechanically and disposed off outside the working zone in proper manner on the dumping yard including , spreading , dozing , lighting , water sprinkling , grading & other ancillary mining activities etc . all complete as per instructions/directions of 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 . carriage lead: ( 0-1 ) km from face to ob dump . , winning / extraction of coal in 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 , lighting , water sprinkling , dozing , grading and other ancillary mining activities and transportation of coal from face to surface coal dump no . 10a etc . complete job as per instructions/directions of 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: ( 1-2 ) km from face to surface coal dump no . 10a . , winning / extraction of coal in 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 , lighting , water sprinkling , dozing , grading and other ancillary mining activities and transportation of coal from face to muraidih feeder breaker no . 1 , 2 & 3 etc . complete job as per instructions/directions of 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: ( 2-3 ) km from face to muraidih feeder breaker no . 1 , 2 & 3 . , winning / extraction of jhama in 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 jhama free from extraneous materials into tippers / dumpers , lighting , water sprinkling , dozing , grading and other ancillary mining activities and transportation of jhama from face to surface coal dump no . 10a ( stacked separately ) etc . complete job as per instructions/directions of 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 jhama . carriage lead: ( 1-2 ) km from face to surface coal dump no . 10a ( stacked separately ) . , drilling in coal , ob &jhama 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 complete , as per instruction of engineer-in-charge . , total impact of gst for the purpose of ctc