B. B. Bandyopadhyay , Prof. Roumi Deb. Development of Railways during the British Raj in India and its Demographic Impact . ijetst [Internet]. 2017Aug.30 [cited 2024Jul.1];4(08):5828-37. Available from: https://igmpublication.org/ijetst.in/index.php/ijetst/article/view/1342