bids are invited for custom bid for services - ferro grade ore td 4427 quantity as per tender document , custom bid for services - ferro grade ore td 4318 quantity as per tender document - enhancement of quality of materials from diluted rom at west side of 6-c section, tirodi mine., scope of work: 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 enhancement of quality of material available from diluted rom at west side of 6-c section of tirodi mine and trench cutting by contractual means. the material will be supplied to the contractor free of cost by the company. total quantity :