The indicative investment for the current phase of expansion is estimated at Rs 61,870 crore.
The five integrated steel plants are at Bhilai, Bokaro, Rourkela, Durgapur and Burnpur and a special steel plant at Salem, Minister of State for Steel and Mines Vishnu Deo Sai said in a written reply to Rajya Sabha.
"Steel Authority of India Ltd (SAIL) has undertaken modernisation and expansion of its five integrated steel plants...To enhance its crude steel production capacity from 12.8 MTPA to 21.4 MTPA in the current phase," he said.
The expansion project at Salem steel plant has been completed and all facilities under the integrated process route at Rourkela and IISCO steel plants are in operation, stabilisation and ramp-up, he said.
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Deo further said RINL has undertaken modernisation and expansion plan at an estimated cost of about Rs 14,701 crore. Units under stage-1 expansion have been commissioned and are in regular operation, he said.
In a separate reply, he said SAIL will invest about Rs 4,749 crore to augment its production capacity of the iron ore mines of Gua in West Singhbhum district of Jharkhand.
After expansion, the capacity of Gua mines will increase to 10 million tonnes per annum (MTPA) which includes 6 MTPA of iron ore lumps and fines and 4 MTPA of pellets, the minister said.