CoalGuru - Times of India reported that India’s Central Bureau of Investigation on Monday conducted raids on office, factory and residences of promoters of Rungta Group of companies in alleged coal linkage scam at different places in the state. The places include three sponge iron factories, office and residence in Ranchi and Ramgarh in Jharkhand. Other than Jharkhand, the raids were also conducted at Varanasi, Kolkata, and Delhi.