Companies such as BMM Ispat, Kalyani Steels, Kirloskar Ferrous and MSPL are working on 20 days to one-month inventories

Shortage of iron ore supply from Karnataka is posing a challenge to steel and pellet-making plants to maintain their production levels.Companies, such as BMM Ispat Ltd, Kalyani Steels, Kirloskar Ferrous Industries Ltd and pellet-making companies like MSPL Ltd, Sesa Goa and Dempo, facing acute ore shortage, hold raw material inventory for just 20-45 days.