Delhi Metro Rail Corporation completes longest twin tunnel
RAILWAYS & METRO RAIL

Delhi Metro Rail Corporation completes longest twin tunnel

The Delhi Metro Rail Corporation (DMRC) has achieved a significant milestone in its Phase-IV construction works with the completion of the first twin tunnel breakthrough, according to an official statement. The twin tunnels, which span around 3 kilometres, represent the longest section built under this phase of the project.

The statement revealed that two tunnel boring machines (TBMs), named Bhoomi and Srishti, completed the breakthrough at Pulbangash Metro Station, marking the connection of the tunnels between Derawal Nagar and Pulbangash on the Janakpuri West-R K Ashram corridor, an extension of the Magenta Line. Both TBMs were retrieved successfully after covering approximately 2,997 metres in just over 14 months, with an average daily progress of 8.2 metres per tunnel. This achievement is noted as the longest tunnelling drive in DMRC's Phase IV.

The breakthrough event was attended by Dharmendra, Chief Secretary of Delhi, and Dr. Vikas Kumar, Managing Director of DMRC. Anuj Dayal, Principal Executive Director of Corporate Communications at DMRC, expressed pride in the accomplishment, affirming DMRC's ongoing commitment to providing safe and efficient transport infrastructure for Delhi's residents.

Afcons, the contractor responsible for the DC-05 package, which includes six underground stations and 14.4km of tunnelling, issued a statement celebrating the completion of 3 km of twin tunnels from Derawal Nagar to Pulbangash. The tunnels were excavated at depths of 14-15 metres beneath densely populated areas like Rana Pratap Bagh and Punjabi Basti Colony, and they also passed under the Najafgarh drain, a structurally sensitive area.

Despite the challenges of tunnelling through submerged water and navigating under-construction areas like Ghanta Ghar station, no damage to structures was reported. The tunnels, which have an internal diameter of 5.8 metres, also feature six cross passages for passenger safety. TBM Bhoomi began operations on June 18, 2023, followed by TBM Srishti on August 19, 2023. The civil works for this section were executed by Afcons.

The Delhi Metro Rail Corporation (DMRC) has achieved a significant milestone in its Phase-IV construction works with the completion of the first twin tunnel breakthrough, according to an official statement. The twin tunnels, which span around 3 kilometres, represent the longest section built under this phase of the project. The statement revealed that two tunnel boring machines (TBMs), named Bhoomi and Srishti, completed the breakthrough at Pulbangash Metro Station, marking the connection of the tunnels between Derawal Nagar and Pulbangash on the Janakpuri West-R K Ashram corridor, an extension of the Magenta Line. Both TBMs were retrieved successfully after covering approximately 2,997 metres in just over 14 months, with an average daily progress of 8.2 metres per tunnel. This achievement is noted as the longest tunnelling drive in DMRC's Phase IV. The breakthrough event was attended by Dharmendra, Chief Secretary of Delhi, and Dr. Vikas Kumar, Managing Director of DMRC. Anuj Dayal, Principal Executive Director of Corporate Communications at DMRC, expressed pride in the accomplishment, affirming DMRC's ongoing commitment to providing safe and efficient transport infrastructure for Delhi's residents. Afcons, the contractor responsible for the DC-05 package, which includes six underground stations and 14.4km of tunnelling, issued a statement celebrating the completion of 3 km of twin tunnels from Derawal Nagar to Pulbangash. The tunnels were excavated at depths of 14-15 metres beneath densely populated areas like Rana Pratap Bagh and Punjabi Basti Colony, and they also passed under the Najafgarh drain, a structurally sensitive area. Despite the challenges of tunnelling through submerged water and navigating under-construction areas like Ghanta Ghar station, no damage to structures was reported. The tunnels, which have an internal diameter of 5.8 metres, also feature six cross passages for passenger safety. TBM Bhoomi began operations on June 18, 2023, followed by TBM Srishti on August 19, 2023. The civil works for this section were executed by Afcons.

Next Story
Building Material

Suraj Estate Wins Euromoney Award for India’s Best Residential Developer

"Suraj Estate Developers Limited has received the Euromoney Real Estate Award 2025 for ‘India’s Best Residential Developer’, positioning the company among globally benchmarked leaders in the sector. The recognition reflects its four-decade legacy in delivering high-quality residential and redevelopment-led projects across South Central Mumbai. The Euromoney Real Estate Awards, presented by the London-based Euromoney magazine, are widely regarded as one of the most credible global assessments of performance in real estate, banking and finance. Winners are selected through surveys of inte..

Next Story
Building Material

Lloyds Metals, Tata Steel Sign MoU to Explore Strategic Collaboration

"Lloyds Metals and Energy Limited has signed a non-binding Memorandum of Understanding with Tata Steel Limited to evaluate potential areas of strategic cooperation across mining, logistics, pelletisation and steelmaking. The MoU was signed by B Prabhakaran, Managing Director of Lloyds Metals, and Mr T V Narendran, CEO and Managing Director of Tata Steel. The partnership framework aims to leverage the natural operational synergies between both companies and assess opportunities in greenfield steel projects, iron ore mining, slurry pipeline infrastructure, pellet manufacturing in iron ore–ric..

Next Story
Building Material

IndiaAI, Gujarat Govt Host Regional Conclave Ahead of 2026 AI Summit

The IndiaAI Mission under the Ministry of Electronics and Information Technology, along with the Government of Gujarat and IIT Gandhinagar, convened a Regional Pre-Summit Event at Mahatma Mandir, Gandhinagar. The initiative is part of the build-up to the India–AI Impact Summit 2026, scheduled for 15–20 February 2026 at Bharat Mandapam, New Delhi. The conclave brought together senior policymakers, technology leaders, researchers and industry practitioners to examine how AI can accelerate economic, digital and social transformation across sectors. The programme focused on the overarching th..

Advertisement

Subscribe to Our Newsletter

Get daily newsletters around different themes from Construction world.

STAY CONNECTED

Advertisement

Advertisement

Advertisement

Advertisement

Open In App