How did the construction of railways affect the structure

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

In India, railways was introduced by Britishers in 1850.
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 in the village economies of India.