hiring of hemm for removal and transportation of 26 . 67 l cum ob and re handling of 7 . 97 l cum ob at jambad extension oc patch in kajora area , item description/ heading , excavation and loading in all kinds of soil including mixed soil , mixed hard soil i . e . clay/ soil mixed with pebble . , moorum , hard moorum , soil mixed with laterite/stone boulders etc . ) at any depth by mechanical means including pumping out water & discharging the same to the nearest drainage system and removal of mud and slurry as required , transporting and unloading mechanically and disposed off by either ( a ) dumping outside the working zone in proper manner on the land arranged by the colliery or ( b ) directly back filling of the excavated area in proper layer or ( c ) filling of subsided area / voids in the adjoining area outside the working zone in operation or as per direction of colliery official in proper gradient including dozing , the job involves making access trench / haul road as required for excavation operation and for transportation of excavated materials etc . all complete as per direction of project officer/ agent . ( payment shall be made for finished work on the basis of pre-work and post-work level section measurement of excavation . measurement is to be certified by colliery surveyor , manager , project officer/ agent , joint check measurement on quarterly/half yearly basis shall be done as per bid document ) carriage lead 1-2 km . , re-handling from the existing dumped overburden obtained by excavation of the mine ( all kinds of soil & rock ) operation , transporting mechanically to site of filling including loading , unloading & spreading the same in proper manner as required all by mechanical means , top surface neatly dressed including making road as required for this job for transportation etc . complete in all respect as per direction of project officer / agent . ( payment shall be made for lower of the assessed quantity on the basis of pre-work and post-work level section measurement of filling zone/cutting zone . measurement is to be certified by colliery surveyor , manager , project officer / agent . joint check measurement on quarterly basis shall be done as per bid document ) . carriage lead 1-2 km . , total impact of gst for the purpose of ctc