Indian Railways approved Kavach 4.0 on 614.75 route km of Varanasi Division for 223 crore, the 6 km Barbil doubling for 122 crore and a new tri-weekly train.
Indian Railways commissioned KAVACH Version 4.0 for the first time on South Central Railway, covering 108 route kilometres of the Malkajgiri-Kamareddi section.