The upcoming Mumbai Metro Line 4 (Green Line) is set to receive 39 fully automated, driverless trains, built under the ‘Make in India’ initiative by Alstom. These six-car trainsets will run on a 35.3 km elevated corridor from Wadala to Kasarvadavali with 32 stations, making it one of Mumbai's longest metro routes. Further, the metro authorities have already placed the first trial train coaches onto the tracks, near Anand Nagar in Thane. The project represents not just an engineering expansion but a civic transformation.

• 39 fully automated, driverless six-car trainsets manufactured under the ‘Make in India’ initiative

• Built at Alstom’s Sri City facility (Andhra Pradesh) with components from Coimbatore (Tamil Nadu), Savli (Gujarat), and design engineering in Bengaluru (Karnataka)

• Equipped with Communication-Based Train Control (CBTC) signalling for high-frequency, reduced CO2 emissions and safe operations

• Passenger-friendly design with:

  • Wheelchair accessibility

  • Dedicated bicycle racks

  • Airflow cooling systems for enhanced comfort

• Safety and performance enhancements including electrical braking systems and strong cybersecurity measures

• 5 years of FlexCare Perform maintenance services to ensure fleet reliability

• Trial run expected to happen in September 2025

1. 35.3 km elevated corridor connecting Wadala in Central Mumbai to Kasarvadavali in Thane

2. 32 stations, including Wadala Truck Terminal (Wadala TT), Manpada (Thane), Dr Hedgewar Chowk, Godrej Company and Mulund Fire Station, making it one of the longest metro lines in Mumbai

3. Seamless integration with the Eastern Express Highway, Mumbai Monorail, and other metro lines

4. Designed to carry lakhs of daily commuters while also boosting tourist access to landmarks like Gateway of India, Marine Drive, Elephanta Caves, and CSMT

5. Aims to reduce road congestion, cut travel times, and provide an affordable, climate-conscious alternative to private vehicles

6. Part of Mumbai’s larger strategy for sustainable, smart urban mobility

1. Length: 10.5 km elevated stretch

2. Stations (10):

   1. Cadbury (common to both metro corridors)

   2. Majiwada

   3. Kapurbawadi (interchange with Line 5)

   4. Manpada

   5. Tikujiniwadi

   6. Dongripada

   7. Vijay Garden

   8. Kasarvadavali

   9. Gowniwada

   10. Gaimukh

3. Opening timeline: Expected February 2026

4. Trial runs: Scheduled to begin mid-September 2025

5. Impact: Provides early relief for Thane commuters, reduces suburban congestion, strengthens inter-line connectivity