Borivali Invests Billions in Infrastructure, Matching Global Cities' Speed

Borivali is in the midst of a multi-billion-rupee infrastructure overhaul that aims to reshape how people move through the western suburbs, and the scale and speed of the work are drawing comparisons to major projects in cities like Singapore, London and Dubai.

The centrepiece is the Thane-Borivali Twin Tunnel, an 11.84-kilometre underground corridor being built by the Mumbai Metropolitan Region Development Authority (MMRDA). The tunnel is designed to slash travel time between Thane and Borivali from the current 1-1.5 hours to just 15 minutes. With construction underway since May 2023, a major milestone was achieved in December 2025 when India’s largest Tunnel Boring Machine (TBM), named 'Nayak' (13.34-metre diameter), was successfully launched beneath Sanjay Gandhi National Park. The project carries a total estimated cost of approximately ₹18,838 crore and is targeted for completion by May 2028, with some sources citing December 2028.

Rail capacity expansion to rival global systems

Borivali is not only building tunnels. The Borivali-Virar 5th & 6th Line, a 26-kilometre quadrupling extension executed by MRVC under MUTP-3A, is set to segregate long-distance and suburban trains. The project, estimated at ₹2,184 crore, is scheduled for completion between December 2027 and December 2028. Western Railway is also moving forward with the redevelopment of Borivali station, adding an additional platform and expanding concourse areas to handle 3.65 lakh daily passengers. At the same time, Kandivali station is being upgraded to ease congestion and support future growth. Globally, cities such as London’s Crossrail project and Singapore’s Thomson-East Coast Line have taken more than a decade from planning to completion for comparable tunnelling work, while Borivali’s tunnel is aiming for roughly five years from start to finish.

Smart station ambitions under scrutiny

Borivali station is being developed as Mumbai’s largest smart station, featuring a state-of-the-art Siemens Westrace MK-II electronic interlocking signaling system that digitally manages 381 train routes and 90 track points. The station’s new smart infrastructure includes a dedicated control room with dual 65-inch 8K digital screens displaying real-time train movements, fully operational by early 2026. While Borivali is not one of the designated 100 Smart Cities under the national Smart Cities Mission (officially closed in March 2025), it benefits from nearby regional initiatives such as the 160-hectare Smart BKC project in the Mumbai Metropolitan Region, which offers public Wi-Fi, smart parking, and energy-efficient street lights. This hybrid approach, combining targeted upgrades with broader regional smart projects, mirrors strategies in cities like Dubai, where mega-projects are paired with city-wide smart infrastructure.

The pace of execution, especially for the tunnel and rail works, will be closely watched. Delays and cost overruns are not uncommon in Indian infrastructure projects, and the complexity of boring through Sanjay Gandhi National Park adds geological and environmental challenges. Still, the MMRDA and Western Railway have set ambitious deadlines. As Borivali continues to grow, the success of these projects could serve as a benchmark for how Indian cities can deliver infrastructure at global standards.