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The Maharashtra government has approved the Metro 8 corridor, connecting Navi Mumbai International Airport to Mumbai's Chhatrapati Shivaji Maharaj International Airport, under a Public-Private Partnership (PPP) model. The 35-km corridor, featuring 20 stations, will integrate key hubs like Kurla and Mankhurd while enhancing multimodal connectivity. CIDCO will prepare the project report, with an estimated cost of INR 15,000 crore and a six-year completion timeline. While Metro 8 aims to boost airport accessibility, its success hinges on careful execution, financial sustainability, and learning from previous PPP challenges.
The Maharashtra state government has decided to construct the Metro 8 corridor, which will link Navi Mumbai International Airport and Chhatrapati Shivaji Maharaj International Airport in Mumbai, through a Public-Private Participation (PPP) model.
Earlier this week, a Government Resolution granted formal approval to the PPP approach, a decision taken during a May 2024 meeting chaired by the state chief secretary. Initially assigned to the Mumbai Metropolitan Region Development Authority (MMRDA), the project is now under the jurisdiction of the City and Industrial Development Corporation (CIDCO), which has been tasked with preparing a detailed project report.
The 35-km Metro 8 corridor will include 25.8 km of elevated track and 8.2 km underground. It will feature 20 stations and connect critical hubs, like Kurla and Mankhurd, and will also connect Lokmanya Tilak Terminus on the Central Railway in Kurla, and the Interstate Bus Terminal which will be built in Mankhurd. The route will also integrate with Metro 2B, improving overall connectivity. At present, access to the Navi Mumbai airport is via road, with the Atal Setu being the primary link, which will be supplemented by the future Worli-Sewri connector.
The Navi Mumbai International Airport is expected to become operational by April 2025, making this metro line vital for accessibility. However, concerns remain regarding the decision to use the Build-Operate-Transfer (BOT) model, as this PPP model failed in Metro 1-a line built in collaboration with Reliance Infra-resulting in financial challenges.
The Metro 1 line, which connects Ghatkopar and Versova, was built a decade ago on a PPP basis, between MMRDA and Reliance Infra, where Reliance Infra has a 74% stake. Although the metro itself is a huge success, it remains entangled in a financial mess. As a result, all Mumbai metro projects after this have been developed on a contract basis, requiring no private participation. The estimated cost of the project is INR 15,000 crore, and it will likely take at least six years to complete.
The state's decision to adopt the PPP model for the Metro 8 corridor is both ambitious and contentious. While the project promises improved airport connectivity and integration with other transport networks, its reliance on a model that previously faced financial difficulties raises valid concerns. Achieving the project's vision will require meticulous planning, execution, and oversight to avoid repeating past mistakes.
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