MANISH GUPTA   Ranchi, July 14: Hazaribagh district, which was invited as one of the eight districts in the country to the national mining conclave held in New Delhi recently, plans to more than triple its annual royalty from coal mining to about Rs 300 crore in next three years.   “Currently, Hazaribagh district earns … Continue reading Hazaribagh eyes tripling coal royalty in 3 years