supply of stone ballast for packing and maintenance work of rails tracks at btps. , supply of stone ballast for packing & maintenance work of rails tracks at btps. , track ballast, 50mm size clean angular hard & durable ,as per rdsos specification additional data: supply of 50 mm size clean, angular, hard & durable track ballast as per rdsos specification & stacking the same on cess on the formation or toe of the bank or at suitable places as directed by the engineer-in-charge, a properly machine crushed stone ballast (50 mm size) at btps marshalling yard as per direction of the engineer-in-charge at site. the rate includes all cost of lead & lift, royalty, sale tax & other tax and duties and all incidental charges complete as applicable. tools, plants and screens of approved mesh & dimension required for inspection and passing at the time of measurement are to be arranged by the contractor. the rate also includes leveling of ground if necessary where the ballast is to be stacked and 1/8 of the volume will be deducted for shrinkage measurement will be made on stack measurement. item code: m17-r03-00080, hsn: 25174900 => limited