Highlights Ahead of iconic freedom fighter Bose's birth anniversary, Railways renamed Howrah-Kalka Mail as 'Netaji Express'. Railways said, "Netaji's prakram had put India on the express route of freedom and development." Howrah-Kalka Mail is one of the most famous and the oldest trains of Indian Railways. New Delhi: Ahead of iconic freedom fighter Subhas Chandra Bose's birth anniversary, the Indian Railways on Wednesday (January 20, 2021) renamed the Howrah-Kalka Mail as the 'Netaji Express'. "Indian Railways is happy to announce the naming of 12311/12312 Howrah-Kalka Express as 'Netaji Express', said the Ministry of Railways. It added, "Netaji's prakram had put India on the express route of freedom and development."