'In view of the expected expansion in domestic demand for steel, there is an urgent need to add to domestic capacity,' he said. Rashtriya Ispat Nigam Ltd is already doubling its capacity from three million tonnes per annum (MTPA) to 6.3 MTPA at the cost of Rs 12,200 crore. National Mineral Development Corporation Ltd, a navratna company, is also increasing its iron ore production c