Mumbai’s transport landscape is gearing up for a dramatic transformation. By the end of 2025, four new Metro corridors are expected to partially open, giving lakhs of daily commuters better and faster travel options. Alongside the Metro expansion, the city will also roll out the Mumbai One app, a single digital platform that brings multiple modes of public transport under one roof.
Metro Expansion Picks Up Pace
The Mumbai Metropolitan Region Development Authority (MMRDA) is constructing a 12-line Metro network spanning 337.1 km across the Mumbai Metropolitan Region (MMR), Mid-Day reported. So far, four lines covering 58.9 km are operational, while eight more — stretching across 165.7 km — are under active construction.
Here's what commuters can expect soon:
Metro Line 9 (Red Line)
Route: Dahisar to Mira Bhayander
Opening: December 2025 (Dahisar to Kashigaon stretch, 4.5 km)
Status: 98% work completed
This 10.5 km elevated line will connect with existing Lines 2A and 10, improving east-west connectivity in the suburbs.
Metro Line 2B (Yellow Line)
Route: DN Nagar to Mandale via BKC and Kurla
Opening: End of 2025 (Mandale to Diamond Garden stretch, 5.4 km)
Status: 78% completed; trial runs underway
A key connector between western suburbs and eastern zones like Chembur.
Metro Line 3 (Aqua Line)
Route: Colaba to SEEPZ (Underground)
Opening: August 2025 (Cuffe Parade to Aarey stretch, 11.57 km)
Status: 99.86% civil work complete
Mumbai’s first underground Metro line, part of which (9.77 km) was opened in May 2025.
Metro Lines 4 & 4A (Green Line)
Route: Wadala to Kasarvadavli and Gaimukh
Opening: Early 2026 (Gaimukh to Cadbury Junction stretch)
Status: Over 84% work done
This 35.32 km line will improve north-south mobility along the city’s central belt.
Mumbai One App: One QR, All Rides
Alongside the physical infrastructure, the Mumbai One app is poised to revolutionise how Mumbaikars commute. The app will integrate 11 transport services, including:
Suburban rail (Central, Western, Harbour lines)
Metro lines
Monorail
Buses operated by BEST, TMT, KDMT, MBMT, and NMMT
Key Features:
Map-based journey planning
One QR code for multimodal travel
Live service updates
SOS features for safety
Seamless payment integration
The app supports the Digital India mission and marks a shift toward paperless, cashless commuting, streamlining travel across one of India’s most complex urban networks.
India’s Largest Metro Training Hub Opens
To support the growing Metro network, MMRDA has inaugurated the Mandale Metro Depot, home to India’s largest Metro training centre. Equipped with high-end simulators, it will train new recruits and upskill current staff. The initiative also supports the Pradhan Mantri Kaushal Vikas Yojana (PMKVY) by contributing to urban skill development.
A Smarter, Faster Mumbai in the Making
With infrastructure nearing completion, smart mobility tools in place, and training underway, Mumbai is making steady progress toward a more integrated and efficient public transport system. If timelines are met, commuters can expect a vastly improved experience by the end of 2025.
