Mumbai, India (Metro Rail Today): In a major boost to Mumbai’s urban mobility, Prime Minister Narendra Modi today inaugurated the final 11.03 km leg of the Mumbai Metro Aqua Line 3 (Colaba–Bandra–SEEPZ corridor), marking the start of train operations on the Phase 2B section from Acharya Atre Chowk to Cuffe Parade. The inauguration completes the long-awaited 33.5-km underground corridor, set to transform daily commuting for over 1.3 million passengers.
Built at a total cost of ₹37,270 crore, the Aqua Line 3 is Mumbai’s first fully underground metro line, connecting Cuffe Parade in South Mumbai to Aarey in the north. With 27 stations, the line will significantly cut travel time, reduce road congestion, and ease the load on Mumbai’s overcrowded suburban rail network.
“Phase 2B of the Mumbai Metro Line-3 is a significant enhancement to Mumbai’s infrastructure! Metro connectivity is essential for a city’s growth. This project will have a positive impact on the lives of the people of Mumbai,” Prime Minister Modi said during the launch.
The Metro Line 3 corridor passes through key areas including:
Kala Ghoda, Marine Drive, Bombay High Court, RBI, and Churchgate in South Mumbai
Bandra-Kurla Complex (BKC) – Mumbai’s financial hub
SEEPZ, Airport T1, Marol, and Aarey
The line ensures interconnectivity with other metro corridors, suburban rail lines, and BEST buses, offering commuters a seamless multimodal travel experience.
According to Mumbai Metro Rail Corporation Ltd (MMRCL), the line will:
Reduce suburban railway congestion by 15%
Cut 3.54 lakh litres of fuel daily
Avoid 6.65 lakh vehicle trips per day
Serve over 13 lakh commuters daily
The project also prioritizes sustainability and rehabilitation:
Over 23,000 trees planted
733 mangrove trees restored and protected
1,941 families rehabilitated into permanent homes
Use of 17 Tunnel Boring Machines (TBMs) – a national record for underground metro construction
“Metro Line 3 represents the future of clean, fast, and inclusive urban transport. With its completion, Mumbai is one step closer to world-class metro infrastructure,” said Mrs. Mamta Shah, MD & CEO of Urban Infra Group. “This corridor not only upgrades city mobility but also reflects an exemplary blend of engineering, environmental care, and social inclusion.”
In a bid to unify Mumbai’s public transport systems, PM Modi also launched “Mumbai One”, India’s first integrated common mobility app. The app enables commuters to:
Plan multimodal journeys
Access metro, suburban trains, and BEST buses
Make seamless digital payments
Get real-time updates and route suggestions
“Mumbai One will simplify commuting for millions and promote digital mobility across transport networks,” Modi added.
The Prime Minister also inaugurated Phase 1 of the Navi Mumbai International Airport (NMIA), a key greenfield infrastructure project designed to decongest Mumbai’s Chhatrapati Shivaji Maharaj International Airport (CSMIA). Spread over 1,160 hectares, NMIA integrates:
Advanced technologies
Sustainable terminal design
Multimodal connectivity including metro, highway, and suburban rail
The airport is expected to serve 10 million passengers annually in Phase 1, with future phases scaling up capacity to 60 million passengers.
With the inauguration of Mumbai Metro Line 3 Phase 2B, launch of Mumbai One, and the rollout of Navi Mumbai Airport Phase 1, Prime Minister Modi has unlocked a triple boost to Mumbai’s infrastructure. These developments underscore the government’s commitment to modern, efficient, and sustainable urban mobility, aligning with India’s broader vision for Viksit Bharat 2047.