• By Soumyaroop Mukherjee
  • Sun, 31 Aug 2025 04:08 PM (IST)
  • Source:JND
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Mumbai Metro Line 3: Mumbai Metro Line 3, which is the city’s first fully underground metro line, running 33.5 km between Cuffe Parade (Colaba) and Aarey, featuring 27 stations (26 underground + one at grade), has reduced the infamous traffic congestion in many areas like BKC, Worli, and Colaba for the office goers. The best part about this metro line is that it connects both the suburbs and well-developed parts of the city, including the airport. 

Line 3 has not only reduced the traffic congestion, but it has also helped reduce the fuel consumption of the daily commuters in the city. For eg, Phase 1 of Mumbai Metro Line 3 has reduced the 650,000 car trips daily. This has helped reduce road congestion by 35 per cent and save 3.54 lakh litres of fuel/day. Full line predicted to serve up to 13 lakh passengers/day, impacting air quality and commute experience across southern-central Mumbai.

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Phase-By-Phase Development Of The Mumbai Metro

The Mumbai Metro Line 3 was built in three phases (although the last phase is still in the building process):

  • Phase 1: The phase 1 of Line 3 runs from the Aarey Colony to Bandra-Burla Complex (BKC), covering a distance of 12.69 km, and was opened for the public on October 7, 2024.

    • Stations:  BKC, Bandra Colony, Santacruz, Chhatrapati Shivaji Maharaj International Airport (CSMIA) T1, Sahar Road, CSMIA T2, Marol Naka, Andheri, SEEPZ, and Aarey Colony JVLR (the only station at grade).

    • Cost: Rs 14,120 crore

  • Phase 2: Phase 2 of Line 3 runs from BKC to Worli, covering a distance of 9.8 km, and was opened for the public on May 9, 2025. 

    • Stations: Dharavi, Shitaladevi Temple, Dadar, Siddhivinayak Temple, Worli, and Acharya Atre Chowk (Worli Naka).

    • Cost: Rs 9,500-10,000 crore

  • Phase 3: The last phase of Line 3 will run from Worli to Cuffe Parade, covering a distance of approximately 11 km. The last phase is still in the building phase and is expected to be completed by the end of 2025.

  • Stations: Science Museum, Mahalaxmi, Mumbai Central, Grant Road, Girgaon, Kalbadevi, CSMT, Hutatma Chowk, Churchgate, Vidhan Bhavan, Cuffe Parade. 

  • Cost: Rs 9,875 crore.

Phase 1 operated with about 8-9 rakes giving 96 round-trip daily between Aarey and BKC. With Phase 2A added, services rose to 244 daily, operated by 8 trains/rakes. Each of these 8-coach trains can carry up to 2,500 passengers with maximum speeds reaching 85 km/h and average speeds till 35 km/h. 

Each eight-coach train carries up to 2,500 passengers; designed speeds of 85 km/h, with an average of 35 km/h.