Metro Railway Kolkata on Wednesday commissioned a Battery Energy Storage System (BESS) along the underground stretch of its Blue Line to enhance energy efficiency and ensure passenger safety during power outages. The underground section of the Blue Line covers the 17-km stretch between Dumdum and Mahanayak Uttam Kumar (Tollygunge). ADVERTISEMENTThe entire Blue Line corridor runs 27 km from Dakshineswar to Sahid Khudiram (Birji), with the Dakshineswar-Dumdum and Mahanayak Uttam Kumar-Sahid Khudiram sections being elevated. "Also, if there is a power outage, the tunnel ventilation control system will continue to function, and commuters will not face suffocation," he added. Except for the headline, this story has not been edited by The Telegraph Online staff and has been published from a syndicated feed.

Source: The Telegraph February 25, 2026 21:10 UTC