New Delhi, Dec 31 (IANS): Eight core industries such as coal, electricity, crude oil, cement and steel grew at 6.7 percent in November, compared to 3.2 percent in November last year, official data showed Wednesday.

The index of eight core industries with a combined weightage of 37.90 percent in the Index of Industrial Production (IIP) with base 2004-05 stood at 166.2 in the month under review, the commerce and industry ministry said.

Electricity generation, which has 10.32 percent weightage in IIP, grew 10.2 percent in November 2014 as compared to 6.3 percent in November last year.

Cement production grew 11.3 percent and coal production was up 14.5 percent. Steel sector was up 1.3 percent from 10.1 percent in the corresponding month last year.

However, three of the eight core industries registered negative growth in November.

Crude oil output was lower 0.1 percent in the month under review, natural gas production fell 2.9 percent, fertilizers output was down 2.8 percent.

Petroleum and refinery products were up 8.1 percent.

The IIP, the barometer for measuring industrial output, had decreased by 4.2 percent in October. IIP data for November is yet to be released.