The correct answer is: B. Rohtak to Rewari.
The first CNG demo train was started between Rohtak and Rewari in Haryana on 28 February 2023. The train was flagged off by the Chief Minister of Haryana, Manohar Lal Khattar. The train is being operated by the Northern Railway.
The CNG demo train is a part of the Haryana government’s efforts to promote the use of CNG as a fuel for trains. The government has plans to convert all its trains to CNG in the future.
CNG is a cleaner and more efficient fuel than diesel. It is also cheaper than diesel. The use of CNG in trains will help to reduce pollution and save money.
The CNG demo train is a welcome step by the Haryana government. It is a step in the right direction towards a cleaner and more sustainable future.
The other options are incorrect because they are not the two stations between which the first CNG demo train was started.