Maharashtra has initiated planning for a major capacity upgrade of the old Pune-Mumbai Highway, with the Maharashtra State Road Development Corporation (MSRDC) preparing a Detailed Project Report (DPR) to widen the corridor from four to six lanes. The proposed investment is intended to strengthen one of the state’s busiest transport links, improve travel reliability and support long-term economic growth between two of India’s largest urban centres. The proposed Pune Mumbai Highway expansion follows the recent widening of the Mumbai-Pune Expressway and reflects growing concern over rising traffic volumes on the parallel highway, which continues to serve commuters, freight vehicles and regional traffic. Authorities estimate the project could require an investment of ₹5,000 crore to ₹6,000 crore, with funding expected to be recovered through toll revenues over an extended concession period.
Officials confirmed that a consultant has been appointed to prepare the DPR, which will determine the final engineering design, construction scope and alignment improvements before execution begins. The study is expected to examine bottlenecks across the route, particularly through the challenging Lonavla and Khandala ghat sections, where steep terrain and heavy traffic frequently affect travel efficiency and road safety. Beyond simply adding lanes, planners are evaluating new link roads and alignment modifications to improve traffic flow while reducing travel time. Infrastructure specialists note that modern corridor upgrades increasingly require a balance between mobility improvements, environmental protection and climate resilience, especially in ecologically sensitive hill regions that receive intense monsoon rainfall. The Pune Mumbai Highway expansion also highlights the continued strategic importance of the historic corridor. Developed during the colonial era as a key connection between Mumbai and the Deccan Plateau, the route later became National Highway 4 before being redesignated as part of National Highway 48.
Although the expressway now carries a significant share of intercity traffic, the older highway remains an essential transport artery supporting local communities, logistics operations and industrial movement across western Maharashtra. Urban and transport planners argue that expanding road capacity alone cannot permanently resolve congestion unless accompanied by integrated freight management, public transport improvements and sustainable land-use planning along rapidly developing corridors. They also stress the importance of incorporating resilient drainage systems, slope stabilisation measures and ecological safeguards into highway modernisation projects to reduce vulnerability to extreme weather events. The proposed financing model may require extending the existing toll collection period beyond its current approval timeline to recover project costs. Such decisions are expected to be assessed alongside the DPR, balancing infrastructure investment needs with affordability for road users.
As Maharashtra continues investing in strategic transport infrastructure, the highway upgrade is expected to enhance regional connectivity, strengthen economic integration between Mumbai and Pune, and improve the resilience of one of the state’s most critical road corridors while addressing future mobility demand.
