Question

why did the British feel the need for railway

Answer 1

British need Railway for the transportation of goods from India to Britain and also to transport their Army from one place to another

Answer 2

Abolition of Sati/ self immolation of widow on death of her husband, with the help of Raja Ram mohan Roy and others who were progressive thinking people. The condition of women was improved and the clutches of religion became loose slowly. Many religious improvements were offered and implemented in spite of resistance.