Rate Contract for Loading of coal at colliery/colliery Pit head/stack yard and Transportation of Coal by Road with dumpers/ tippers/ hyva from different collieries/ coal washeries of BCCL/ECL/ CCL/any other coal company to RTPS Coal yard under distance Slab-B (71-100 Km) and unloading thereof at RTPS Coal Yard, for a period of 240 Days