How did the construction of railways affect the structure of the Indian

How did the construction of railways affect the structure of the Indian economy?

In India, railways was introduced by British in 1850, however it begans its operation in 1953.
It affected the structure of the Indian economy in many ways
(i) It enabled people to undertake long distance travel and thereby break geographical and cultural barriers.
(ii) It fostered commercialisation on Indian agriculture which adversely affected the self-sufficiency of the village economies in India.