The Railways launched the Google's free Wi-Fi service at Vijayawada, Kachiguda and Raipur stations.
Investment to the tune of Rs 14 lakh crore would be required to transform Railways into "world-class standards" and meet other targets for the coming decade, the Railway Vision Document 2020 tabled on Friday said.
The feasibility study of Delhi-Chennai corridor is being done in cooperation with Chinese Railways.