Tenders for Custom Bid For Services - Preparation And Approval Of Mining Plan Of Munsar Mine From Ibm By Outsourcing As Per Tender Document, Custom Bid For Services - Preparation And Approval Of Mining Plan Of Gumgaon Mine From Ibm By Outsourcing As Per Tender Document, Custom Bid For Services - Preparation And Approval Of Mining Plan Of Dongri Buz Mine From Ibm By Outsourcing