The correct answer is: B. Koderma-Hazaribagh industrial area.
The Koderma-Hazaribagh industrial area is famous for heavy engineering. It is located in the state of Jharkhand, India. The area is home to a number of heavy engineering companies, including Bharat Heavy Electricals Limited (BHEL), Heavy Engineering Corporation (HEC), and Ranchi Engineering Works (REW). These companies manufacture a variety of heavy engineering products, including power generation equipment, locomotives, and railway wagons.
The Koderma-Hazaribagh industrial area is a major contributor to the economy of Jharkhand. The area provides employment to a large number of people and generates significant revenue for the state government. The area is also a major source of exports for India.
The other options are incorrect because they are not famous for heavy engineering.
A. Lohardaga industrial area is famous for coal mining.
C. Singhbhum industrial area is famous for iron ore mining.
D. Ranchi industrial area is famous for education and healthcare.