Eight core industries logged a 5.1 percent growth in September, led by double-digit growth in coal and petroleum refinery products, government data showed on Wednesday.
During the corresponding month of 2011, the eight industries that have a combined weight of 37.90 percent in the index of industrial production (IIP), had registered a growth of 2.5 percent.
The eight core industries are coal, crude oil, natural gas, petroleum refinery products, fertilizers, steel, cement and electricity.
The cumulative growth of the core industries during April-September 2012-13 period was 3.2 percent as compared 5 percent growth registered during the corresponding period of previous fiscal, according to data released by the commerce and industry ministry.
Coal production registered a growth of 21.4 percent in September as against a decline of 18.2 percent in the corresponding month of 2011.
The output of petroleum refinery products grew by 11.4 percent during the month under review as compared to 4.3 percent registered during corresponding month of 2011.
Cement production surged by 13.4 percent in September 2012 as compared to 2.2 percent growth registered in September 2011.
However, electricity, fertiliser and steel sectors registered sluggish growth.
Electricity sector, which has 10.32 percent weight in the IIP, registered a growth of 3.7 percent in September this year as compared 8.8 percent during the corresponding month of previous year.
Fertiliser production increased by 5.7 percent year-on-year in September 2012 and steel output grew by 2 percent.