Updated On: 15 July, 2025 09:01 PM IST | Mumbai | mid-day online correspondent
The upline tunnel marks a key development in the project, which began on November 4, 2023 using a Tunnel Boring Machine (TBM). The tunnel is about 1.65 km long, officials said

According to officials, so far, the project has achieved 61 per cent completion across the full alignment
Mumbai Metro Line 7A reached a major milestone with the successful breakthrough of the second and final tunnel of the corridor connecting Andheri (East) to Mumbai airport, the Mumbai Metropolitan Region Development Authority (MMRDA) said.
The final tunnel of the corridor connects Andheri (East) to Chhatrapati Shivaji Maharaj International Airport (CSMIA).
The upline tunnel marks a key development in the project, which began on November 4, 2023 using a Tunnel Boring Machine (TBM).