According to officials, around 25% work on these routes has been commissioned and is in ready-to-use condition, while major components for the remaining 75% have already been installed.

Having missed the second deadline of December 2025, the Railways is now hopeful of operationalising the automatic train protection system, Kavach, on routes connecting the national capital with Mumbai and Howrah sometime in 2026, with steady progress and an aggressive approach, officials said.

Kavach is an indigenously developed, highly technology-intensive system that helps loco pilots maintain specified speed limits by automatically applying brakes if the drive fails to do so.

According to the officials, around 25% work on these routes has been commissioned and is in ready-to-use condition, while major components for the remaining 75% have already been installed.

"We are doing our level best to operationalise Kavach on the Mumbai-Delhi and Delhi-Kolkata routes, hoping to achieve it in 2026," officials said.