Maharashtra’s latest state budget has unveiled a large-scale infrastructure strategy that includes underground road corridors in Mumbai and Pune alongside plans to develop a new urban centre near the upcoming Vadhavan port in Palghar district. The proposals reflect the government’s attempt to address mounting urban pressure in the Mumbai Metropolitan Region while planning for future population and economic expansion along the state’s western coast.
Among the most notable announcements is the proposed Maharashtra underground road expansion, which aims to introduce subsurface highway corridors in the state’s two largest metropolitan regions. Transport planners say the initiative is intended to ease road congestion in dense city centres where widening surface roads is increasingly difficult. In Mumbai, underground transport links are being considered to complement the city’s expanding coastal road network, metro corridors and trans-harbour connections. Infrastructure officials say tunnelling solutions are increasingly viewed as necessary in cities where land availability is limited and traffic volumes continue to grow.
A similar strategy is being explored in Pune, one of India’s fastest expanding urban regions. Authorities are studying underground road alignments linking major traffic corridors across the city. Urban mobility experts note that while such projects are technically complex and expensive, they can help preserve surface land for public spaces, pedestrian movement and sustainable transport systems.
The Maharashtra underground road expansion is also being positioned as part of a broader effort to modernise transport infrastructure while reducing travel time across major urban corridors. City planners suggest that integrating underground road systems with metro networks, ring roads and bus-based transit could help distribute traffic more efficiently across expanding metropolitan regions.
Alongside these mobility initiatives, the state government has also outlined plans for a major new urban settlement near the proposed Vadhavan deep-sea port in Palghar district. The project, informally described by planners as a “Fourth Mumbai”, is expected to emerge as a logistics, industrial and residential hub linked to port-led economic development. Urban economists say the development could play a strategic role in balancing growth across the Mumbai Metropolitan Region, where existing cities are facing land constraints and infrastructure stress. By creating new employment centres near emerging port infrastructure, policymakers hope to reduce long-distance commuting patterns that contribute to congestion and environmental strain.
However, planning experts emphasise that the success of such initiatives will depend on integrating transport, housing and environmental policies from the outset. Large-scale urban expansions must consider climate resilience, sustainable water management and inclusive housing supply to prevent the formation of new urban inequalities. The Maharashtra underground road expansion, combined with the development of a new port-linked city, signals a shift toward long-term metropolitan planning that extends beyond existing municipal boundaries. As project studies move forward, authorities will face the challenge of aligning ambitious infrastructure goals with environmental safeguards and balanced urban growth across the region.
Maharashtra Underground Road Plan Targets Mumbai Pune Congestion
