Tunelling work begins for Kolkata Metro's Purple Line, expected to be completed by 2026 end

L&T’s Kolkata Metro TBM Durga Starts Line-3's Tunneling Work

Larsen & Toubro (L&T) on Thursday officially commissioned their first tunnel boring machine (TBM) at Kidderpore for constructing 15.215 km Kolkata Metro Line-3 (Purple Line) which will connect Joka – Esplanade via 12 stations. TBM Durga (S-1410A) is a Ø6.6m earth pressure balance (EPB) machine by Herrenknecht and had passed factory acceptance tests in January 2025 […] The post L&T’s Kolkata Metro TBM Durga Starts Line-3’s Tunneling Work first ap…

Tunelling work begins for Kolkata Metro's Purple Line, expected to be completed by 2026 end

Kolkata, Jul 10 (PTI) Tunnelling work for the Kolkata Metro's Purple Line began at Khidderpore on Thursday.Tunnel boring machine (TBM), named Durga, started work at the shaft built on the St Thomas School campus following a brief ceremony.It was attended by Metro Railway General Manager P Uday Kumar Reddy, officials of Rail Vikas Nigam Ltd (RVNL), which is implementing the project, and representatives of the Nepal Consulate, Ministry of Defence,…