The company produced 12.17 MT of crude steel in 2013-14, JSW Steel said in a regulatory filing to the BSE.
The company also recorded 12 per cent growth in its long product segment at 2.06 MT for the year under review, it added.
"The growth in long product segment is due to improved utilisation of our long product facility as a result of better market share," the company said.
In the flat product segment, its production grew by 3 per cent to 10.07 MT in the last fiscal.
"The crude steel production is lower in Q4 FY'15 mainly due to shutdown of about 47 days taken for annual maintenance of one of the blast furnaces at Vijayanagar Works," it said.
JSW Steel shares were trading 2.01 per cent up at Rs 976.45 apiece during afternoon session on the BSE.