The long-awaited final phase of Mumbai Metro Line 3 (Aqua Line) is set to be inaugurated on October 8, 2025, marking the completion of the city’s first fully underground metro corridor. The last stretch, extending from Science Museum Station to Cuffe Parade Station, features 11 underground stations and will enable uninterrupted travel from Colaba to Aarey—a major milestone in Mumbai’s urban transport landscape.

The first phase of the Aqua Line—from Aarey to BKC—became operational in October 2024, followed by an extension to Acharya Atre Chowk in May 2025.

The remaining section of Mumbai Metro Line 3 includes stations such as Science Museum, Mahalaxmi, Mumbai Central, Grant Road, Girgaon, Kalbadevi, CSMT, Hutatma Chowk, Churchgate, Vidhan Bhavan, and Cuffe Parade. This phase connects key

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