hiring of hemm for removal of ob , extraction and transportation of coal ( including crushing ) with firefighting from khudia , palasia , gp top , gp bottom , bp top , bp bottom and kalimati seam at patch-b of basantimata-dahibari colliery , cv area . , 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 area surface/ in-pit ob dump in proper manner including spreading , dozing , lighting , water sprinkling , grading , fire-fighting 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 . ) removal and disposal of overburden also includes fire-fighting for which the tenderer has to provide adequate m . s . pipes of required lengths & dia . including all required fittings etc . for proper fire-fighting at ob faces and ob dumps as per instructions/directions of engineer in-charge . the tenderer has to make arrangements of manpower and fire-fighting including hoses to deal with fire during all operations such as drilling in hot strata at any depth , cooling the blast holes with water before charging them with explosives , charging of explosives in blast holes , digging and loading of ob , continuously spraying water over the blasted ob to quench fire etc . tenderer has to ensure that fire is absolutely quenched before loading of ob etc . carriage lead: ( 1-2 ) 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 area surface/ in-pit ob dump in proper manner including spreading , dozing , lighting , water sprinkling , grading , fire-fighting 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 . ) removal and disposal of overburden also includes fire-fighting for which the tenderer has to provide adequate m . s . pipes of required lengths & dia . including all required fittings etc . for proper fire-fighting at ob faces and ob dumps as per instructions/directions of engineer in-charge . the tenderer has to make arrangements of manpower and fire-fighting including hoses to deal with fire during all operations such as drilling in hot strata at any depth , cooling the blast holes with water before charging them with explosives , charging of explosives in blast holes , digging and loading of ob , continuously spraying water over the blasted ob to quench fire etc . tenderer has to ensure that fire is absolutely quenched before loading of ob etc . carriage lead: ( 2-3 ) 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 area surface/in-pit ob dump in proper manner including spreading , dozing , lighting , water sprinkling , grading , fire-fighting 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 . ) removal and disposal of overburden also includes fire-fighting for which the tenderer has to provide adequate m . s . pipes of required lengths & dia . including all required fittings etc . for proper fire-fighting at ob faces and ob dumps as per instructions/directions of engineer in-charge . the tenderer has to make arrangements of manpower and fire-fighting including hoses to deal with fire during all operations such as drilling in hot strata at any depth , cooling the blast holes with water before charging them with explosives , charging of explosives in blast holes , digging and loading of ob , continuously spraying water over the blasted ob to quench fire etc . tenderer has to ensure that fire is absolutely quenched before loading of ob etc . carriage lead: ( 3-4 ) 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 area surface ob dump in proper manner including spreading , dozing , lighting , water sprinkling , grading , fire-fighting 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 . ) removal and disposal of overburden also includes fire-fighting for which the tenderer has to provide adequate m . s . pipes of required lengths & dia . including all required fittings etc . for proper fire-fighting at ob faces and ob dumps as per instructions/directions of engineer in-charge . the tenderer has to make arrangements of manpower and fire-fighting including hoses to deal with fire during all operations such as drilling in hot strata at any depth , cooling the blast holes with water before charging t