The correct answer is: A. 2013
The Hazaribagh – Koderma train was inaugurated on 14 February 2013. It is a daily train that runs between Hazaribagh Junction railway station in Jharkhand and Koderma Junction railway station in Jharkhand. The train covers a distance of 186 kilometres in 4 hours and 15 minutes. It has 10 coaches, including 2 AC coaches, 6 sleeper coaches, and 2 general coaches. The train is operated by the East Central Railway zone of Indian Railways.
Option B is incorrect because the Hazaribagh – Koderma train was not inaugurated in 2001.
Option C is incorrect because the Hazaribagh – Koderma train was not inaugurated in 2002.
Option D is incorrect because the Hazaribagh – Koderma train was not inaugurated in 2015.