Delhi (Metro Rail News): The Delhi Metro Rail Project has achieved a major milestone in Phase 4 with the successful tunnel breakthrough at Tughlakabad Railway colony Station of the Golden Line. The Golden Line (Line 10) of Delhi Metro Phase 4 spans 23.622 km from Aerocity to Tughalakabad through 15 stations.


During the Breakthrough, Dr. Pankaj Kumar Singh, Hon’ble Minister for Health & Family Welfare, Transport, Information Technology, Govt of NCT of Delhi, Dr. Vikas Kumar, Managing Director/DMRC and other senior officials were present.

About the TBM Breakthrough
The tunnel breakthrough at the Tughlakabad Railway colony Station has been achieved through a mammoth 96-metre-long Tunnel Boring Machine (TBM).
The TBM has constructed a 0.792-kilometre-long -long tunnel between the Maa Anandmayee Marg and Tughlakabad Railway colony station of the Golden Line.
The tunnel between the Maa Anandmayee Marg and Tughlakabad Railway colony station has been constructed at an average depth of approximately 18 meters.
As per the DMRC Press Release, about 566 rings have been installed in the tunnel, with an inner diameter of 5.8 meters.