Explanation:

 RajBan, as the name suggests in Hindi, to be the 'Ban'  Jungle/ Forest) of Raja. Rajban is home to one of the oldest cement factory (CCI) in Himachal. It is located on the river bank, where river Tohns and river Giri converge. Rajban is a very small town with a dense forest adjacent to it and the high steep hills can be seen easily from the landscapes of the Rajban town.

Basically Rajban is known for the central Governments establishment there known as Cement Corporation of India. Its quite a very large unit area wise and employing up to 500 workers working in the establishment.