The miners are not able to sell the inventory in the state or domestic market since buyers prefer imported iron ore as they feel it is better on quality
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/karnataka-iron-ore-mines-stuck-65-million-tonnes-unsold-inventory
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/business-standard-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/karnataka
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mining
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/iron
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/minerals
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industry