TBM Breakthrough Achieved on Golden Line of Delhi Metro Phase-IV

Tunneling work for Phase-IV of Delhi Metro’s Golden Line between Kishangarh and Vasant Kunj stations has been completed. A tunnel boring machine (TBM) successfully broke through at Vasant Kunj station in the presence of Union Minister of Housing and Urban Affairs and Power, Manohar Lal Khattar, and Minister of State for Housing and Urban Affairs, Tokhan Sahu.
The 91-meter-long TBM excavated a 1,550-meter tunnel at Vasant Kunj station. Two parallel circular tunnels are being constructed for bidirectional movement, with the second tunnel expected to be completed by June 2025. The newly completed tunnel, at an average depth of 23 meters, consists of 1,107 tunnel rings, each with an inner diameter of 5.8 meters.