<h1>India's Core Industries Growth Slows to 3.5% in August 2011, Down from 4.4% in August 2010.</h1> The Index of Eight Core Industries in India, which constitutes 37.90% of the Index of Industrial Production, recorded a growth rate of 3.5% in August 2011, down from 4.4% in August 2010. Between April and August 2011-12, the cumulative growth was 5.3%, compared to 6.1% in the same period the previous year. Coal production saw a significant decline, while crude oil, natural gas, and petroleum refinery products experienced varied growth rates. Fertilizer and steel production showed positive growth, with cement and electricity generation also improving significantly compared to the previous year.