The correct answer is: A. Bhagalpur
Asia’s biggest and oldest locomotive workshop is located in Jamalpur, Bhagalpur district, Bihar. It was established in 1862 by the East Indian Railway Company. The workshop is spread over an area of 1,200 acres and has a workforce of over 10,000 people. It is capable of manufacturing and repairing all types of locomotives, including steam locomotives, diesel locomotives, and electric locomotives. The workshop has also been involved in the manufacture of wagons, coaches, and other railway equipment.
The other options are incorrect because:
- Munger is a district in Bihar, but it is not home to Asia’s biggest and oldest locomotive workshop.
- Araria is a district in Bihar, but it is not home to Asia’s biggest and oldest locomotive workshop.
- Arwal is a district in Bihar, but it is not home to Asia’s biggest and oldest locomotive workshop.