Who among the following advocated the construction of initial railways in India for facilitating army movement?

Lord Dalhousie, Governor-General of India from 1848 to 1856, advocated the construction of railways in India. In his famous 'Railway Minute' of 1853, he laid down the plan for a railway network across India, citing strategic, commercial, and administrative reasons — including the rapid movement of British troops and army for maintaining control over the vast territory. The first railway line in India ran between Bombay and Thane in 1853 under his governorship.