The correct answer is A. Dhanbad.
Central Mining Research Institute (CMRI) is a premier research institute in the field of mining and mineral processing. It is located in Dhanbad, Jharkhand, India. The institute was established in 1948 by the Government of India to undertake research and development in the field of mining and mineral processing. CMRI is a constituent laboratory of the Council of Scientific and Industrial Research (CSIR).
CMRI has a wide range of research facilities, including laboratories, pilot plants, and a mine. The institute undertakes research in all aspects of mining and mineral processing, including exploration, extraction, beneficiation, and environmental management. CMRI also provides training and consultancy services to the mining industry.
CMRI is a leading research institute in the field of mining and mineral processing. The institute has made significant contributions to the development of the mining industry in India. CMRI is also a recognized center of excellence for research in the field of mining and mineral processing.
The other options are incorrect.
Option B, Jamshedpur, is the location of Tata Steel.
Option C, Ranchi, is the capital of Jharkhand.
Option D, Deoghar, is a city in Jharkhand known for its temples.