MMRDA Launches Second TBM 'Arjuna' For Mumbai's Thane-Borivali Tunnel
MMRDA set to launch second TBM, Arjuna, for Thane-Borivali Twin Tunnel Project. Tunnelling from Borivali end awaits land acquisition.

The Mumbai Metropolitan Region Development Authority (MMRDA) is set to launch 'Arjuna', the second Tunnel Boring Machine (TBM), for the ambitious Thane-Borivali Twin Tunnel Project. This marks another milestone in the construction of what will be India's longest urban road tunnel.
The launch of Arjuna follows the commissioning of the first TBM, 'Nayak', in April this year. While Nayak has already begun excavation from the Thane end, Arjuna is expected to commence tunnelling shortly. Together, the two machines will excavate the twin tunnels from the Thane side.
Arjuna is derived from a tree species found in Sanjay Gandhi National Park (SGNP). The machine is a large-diameter single-shield hard-rock Tunnel Boring Machine designed specifically for excavating through the basalt rock formations beneath the SGNP.
However, tunnelling from the Borivali end is likely to begin later as land acquisition is still underway. The Borivali launch site was occupied by around 300 project-affected families (PAPs), with most of them already rehabilitated in Slum Rehabilitation Authority (SRA) and MHADA housing. Around 15 to 20 families are yet to be shifted, and officials said these remaining families are expected to be offered rehabilitation housing of their choice to expedite the acquisition process.
According to officials, four giant Tunnel Boring Machines will eventually be deployed for the project. Two—Nayak and Arjuna—will operate from the Thane end, while two more will be launched from the Borivali side after the required land is handed over. Orders for the remaining two TBMs have already been placed, and the machines will be brought to Mumbai once possession of the land is secured.
The Thane-Borivali Twin Tunnel Project is a significant infrastructure development project in Mumbai, aimed at reducing traffic congestion and improving connectivity between the city's eastern and western suburbs. The project is expected to be completed in the coming years, and the launch of Arjuna marks an important step towards its completion.
The MMRDA has also announced plans to commission other projects, including SCLR Phase 2, Chembur Metro station on Line 2B, and Mumbai Monorail, along with the Thane-Borivali Twin Tunnel Project. These projects are expected to improve the city's infrastructure and provide better connectivity to its residents.
In conclusion, the launch of Arjuna is a significant milestone in the construction of the Thane-Borivali Twin Tunnel Project. The project is expected to have a major impact on the city's infrastructure and traffic congestion, and its completion will be a major achievement for the MMRDA.
The MMRDA's efforts to complete the project on time are commendable, and the launch of Arjuna is a testament to the authority's commitment to improving the city's infrastructure. As the project progresses, it is expected to bring significant benefits to the city's residents, including reduced traffic congestion and improved connectivity.
The project's completion will also have a positive impact on the city's economy, as it will provide better connectivity to the city's eastern and western suburbs. This will make it easier for people to travel to and from work, and will also improve the city's overall quality of life.
Overall, the launch of Arjuna is a significant step towards the completion of the Thane-Borivali Twin Tunnel Project, and it is expected to have a major impact on the city's infrastructure and traffic congestion.
Frequently asked questions
What is the Thane-Borivali Twin Tunnel Project?
The Thane-Borivali Twin Tunnel Project is a significant infrastructure development project in Mumbai, aimed at reducing traffic congestion and improving connectivity between the city's eastern and western suburbs.
When is the project expected to be completed?
The project is expected to be completed in the coming years, but an exact completion date has not been announced.