Criterion (ii): The Mountain Railways of India are outstanding examples of the interchange of values on developments in technology, and the impact of an innovative transportation system on the social and economic development of a multicultural region, which was to serve as a model for similar developments in many parts of the world. The Mountain Railways of India exhibit an important cultural and technologicaly transfer in the colonial setting of the period of its construction, particularly with regard to the eminently political function of the terminus station, Shimla.. The railway then enabled significant and enduring human settlement, of which it has remained the main vector up to the present day.