The DMRC has completed its first-ever tunnelling stretch of Phase-IV at Krishna Park Extension on the Janakpuri West-R K Ashram Marg corridor.
This was achieved with a Tunnel Boring Machine (TBM) breaking through after boring a 1.4 km-long tunnel. The DMRC has been using TBMs for its tunnelling work since Phase 1.
About 50 km of underground sections of the Phase-III corridor was built with this technology.
The Phase-IV project had started at Vikaspuri on the Janakpuri West-R K Ashram Marg corridor in October 2020. The main tunnelling work on this stretch commenced in April this year after completing the initial drive.
