bids are invited for mine development & operations service(mdo) - open cast mining; manganese ore, 20 percent mn lumpy ore msl 585 enhancement of quality of material to produce (msl-585) from sub grade mineral rejects from crusher at munsar mine. exploration of magniferous dumps/ rom and recovery of manganese ore of specifications, as indicated in tender document incidental to such exploration work and covers the following: a) segregation and washing operation. b) recovery of different grades of ore from above and its grade-wise stacking and cutting channels for sampling. c) ensuring security of above, till its transport to the companys siding or completion of the contract, which ever earlier. d) the work includes sizing, screening, stacking of ore removal of rock and dust and cutting of channels for sample collection by contractual means. the rom feed from sub-grade mineral rejects shall be supplied to the contractor by the company. total quantity :