The company had produced 13.62 LT crude steel in November 2017, it said in a statement.
It has registered a fall of 5 per cent in the production of flat-rolled products to 9.15 MT as against 9.59 MT in the same month last year.
However, the company registered a 17 per cent growth in the output of its long rolled products at 3.48 MT in November as compared to 2.99 LT in the year-ago month, JSW Steel said.
Last week, ratings agency Icra had said that domestic flat steel manufacturers may have to brace for a downward revision in prices, as a threat of cheap imports into India in near-term has increased.
Domestic flat steel prices are likely to face temporary pressures from cheaper imports, it had said in a research report.
JSW Steel is a part of the diversified $13 billion JSW Group, which has a presence in steel, energy, infrastructure, cement, ventures and sports. It is the leading integrated steel company with an installed steel-making capacity of 18 million tonnes per annum (MTPA) in India.
The company's Vijayanagar plant in Karnataka is the largest single location steel producing facility in the country with a capacity of 12 MTPA.