Afcons Infrastructure Limited, a leading engineering and construction company, has completed the longest tunneling drive for the Delhi Metro Rail Corporation (DMRC) in Phase IV of the Delhi Metro project. The breakthrough was achieved at Maa Anandmayee Marg Station on the Tughlakabad-Aerocity corridor (Line-10).
The tunneling feat was accomplished using a Tunnel Boring Machine (TBM) AMRIT, which bored through a 2.65-kilometer stretch of mixed soil and hard rock strata between the Tughlakabad Airforce Launching Shaft and Maa Anandmayee Marg Station. This drive marks the longest tunnel constructed in the current phase of the Delhi Metro.
The tunnel’s alignment was carefully planned to avoid passing beneath heritage structures near Mehrauli Badarpur Road. Penetrating the hard rock required precise navigation and frequent cutter replacements. The tunnel is situated approximately 16 meters underground and includes 1,894 rings with an inner diameter of 5.8 meters.
Speaking on the achievement, S. Paramasivan, Managing Director of Afcons Infrastructure Ltd, said, “This milestone underscores our commitment to delivering complex infrastructure projects efficiently. The TBM AMRIT breakthrough is a significant step in advancing urban connectivity in the national capital.”
Project Details: Package DC-07
The DC-07 package is part of the Aerocity to Tughlakabad Corridor (Line-10), covering a total route length of 23.62 kilometers. It comprises:
- 11.26 kilometers of tunneling
- Three underground stations: Maa Anandmayee Marg Station, Tughlakabad Railway Colony Station, and Tughlakabad Station.
- A 223-meter ramp and a 119-meter cut-and-cover section.
The second parallel circular tunnel along the same stretch is scheduled for breakthrough in January 2025.
