PRESS RELEASE




Alstom to supply trains, signalling solutions and maintenance
for Mumbai Metro Line 4

• 39 driverless Metropolis trainsets will be manufactured in India at Alstom’s Sri
City factory.
• Urbalis Forward CBTC signalling will significantly reduce travel time, traffic
congestion, and CO2 emissions.
• Five years of maintenance services will ensure the metro fleet and signalling has
the highest availability and reliability.

26 August 2025 – Alstom, a global leader in smart and sustainable mobility, has been commissioned to
supply 234 Metropolis metro cars (39 trainsets of 6 cars each) and Communications Based Train Control
(CBTC) signalling system with five years of maintenance service, by Larsen & Toubro Limited, India. The
total value for the supply of these products, solutions and services amounts to a few hundred million
euros for Alstom. Larsen & Toubro India was recently awarded the contract by Mumbai Metro Regional
Development Authority (MMRDA) to provide Integrated Systems Package for Mumbai Metro Line 4
(Green Line), which includes rolling stock, CBTC signalling and train control, telecommunication,
platform screen doors, and depot machinery & plant with five years of maintenance. L&T has partnered
with Alstom for the rolling stock and signalling system with five years of maintenance.

Mumbai Metro’s Line 4 is a 35.3 km elevated corridor between Wadala in Central Mumbai and
Kasarvadavali in Thane with 32 stations. It will be one of the longest metro lines in the city, and
provide connectivity to the existing Eastern Express Highway, Monorail and other lines of Mumbai
Metro.

Speaking on the occasion, Ling Fang, Region President, APAC, Alstom said, “We are honoured to be
chosen for the prestigious Mumbai Metro Line 4 project, further strengthening our long-standing
association with the city of Mumbai. Alstom-built trains and signalling solutions are already serving on
other Mumbai Metro lines. This ambitious new project presents more opportunities for us to provide
best-in-class solutions to the commuters and contribute to elevating the financial capital’s
infrastructure”.

Under the ‘Make in India’ initiative, all 39 Metropolis trainsets, each with a 6-car configuration, will be
designed at Alstom’s engineering centre in Bangalore, Karnataka, manufactured at Alstom’s state-of-
the-art Sri City facility, in Andra Pradesh; propulsion will be manufactured at Coimbatore, Tamil Nadu
and bogies at Savli, Gujarat. The Sri City facility has an annual capacity of producing 480 cars and a
strong portfolio of delivering trainsets for several domestic and international metro projects, including
driverless trainsets for Mumbai’s Aqua Line, Delhi Phase IV and Chennai Phase II, as well as Montreal
and Sydney.

Alstom is a strong leader in the mass transit market and stands as the undisputed leader in CBTC
technology worldwide. The company has over 30 years of expertise in radio CBTC and has been chosen
for 190 CBTC metro lines, with over 90 lines in operation, worldwide. In India, 18 metro lines are
currently equipped or underway with Alstom’s world-class signalling solutions.

Alstom has a long-standing contribution to Mumbai’s metro network with the Mumbai Metro Aqua
Line train and signalling solutions provided by Alstom. Now under commercial operations, the Aqua
Line is one of the longest underground metro lines in the country, with Alstom’s driverless Metropolis
trains transporting more than 1.6 million passengers per day. In addition, Alstom is also providing
Signalling & Telecom solutions for Mumbai Line 2 & 7 and Signalling for Line 7A & 9.

More about the Rolling Stock
These driverless trains will feature a unique design and offer passenger comfort and accessibility,
incorporating interior airflow cooling, wheelchair access, and bike racks. Reliable components will
guarantee high performance and safety, including electrical braking and cybersecurity measures.

Alstom will also provide FlexCare Perform maintenance services for five years to ensure fleet for Mumbai
Metro runs safely and reliably day after day. Alstom’s scope includes comprehensive maintenance for
the 234 Metropolis cars.

More about the Signalling solutions
At the core is Alstom’s world leading CBTC technology, enabling driverless operation, offering an
exceptional level of service across the combined line length of 35.3 kms. This project is expected to
alleviate traffic congestion in the city by minimising travel time, reducing CO2 emissions, and making a
substantial contribution to the expanding public infrastructure of India's Financial Capital. Alstom’s rail
cyber security solution, backed by a secure and certified development process, will deliver an efficient
answer to emerging cyber threats by safeguarding the backbone of modern transportation.

Alstom’s CBTC Urbalis, a solution developed at our Bangalore site with 1,000+ engineers for deployment
of various solutions worldwide, will also offer the highest Grade of Automation (GoA4), which is
commonly known as the ‘driverless technology’. Alstom’s Urbalis Vision platform will be set up at the
integrated Operation Control Centre (OCC), being built at Mandale depot and the backup Control Centre
(BCC) located at Mogharpada which will serve as a command centre to control and monitor all train
operations. The onboard automatic train control will interface with the Metropolis Rolling Stock
manufactured by Alstom, managing the headway and safety of 39 trains in a 6-car configuration each.
Alstom will also provide maintenance services for five years to ensure fleet for Mumbai Metro runs safely
and reliably day after day.
Alstom stands at the forefront of urban mobility with its market-leading Metropolis metros, serving over
80 customers worldwide. Alstom is also the market leader in rail services, supporting customers over
the entire asset lifecycle with the broadest portfolio of services solutions and a leader in CBTC with over
30 years of expertise and 190 metro lines in 32 countries.
For more information, please visit Metropolis metros: Keeping your city breathing and FlexCare Perform,
Rail maintenance services for all types of assets and Urbalis CBTC range, world leading high capacity
signalling

ALSTOM™, Metropolis™, Urbalis™, Urbalis Vision™, Urbalis Forward™ and FlexCare Perform™ are protected trademarks of
the Alstom Group.



About Alstom Alstom commits to contribute to a low carbon future by developing and promoting innovative and sustainable
transportation solutions that people enjoy riding. From high-speed trains, metros, monorails, trams, to turnkey
systems, services, infrastructure, signalling and digital mobility, Alstom offers its diverse customers the broadest
portfolio in the industry. With its presence in 63 countries and a talent base of over 86,000 people from 184
nationalities, the company focuses its design, innovation, and project management skills to where mobility
solutions are needed most. Listed in France, Alstom generated sales of €18.5 billion for the fiscal year ending on
31 March 2025.
For more information, please visit www.alstom.com.


Alstom is the only multinational sustainable mobility provider in India, to have a comprehensive portfolio of
About
offerings to meet customer specific needs, from cost-efficient mass-market platforms to high-end technological
Alstom in
innovations. Synonymous with the country’s ‘Rail Revolution’, Alstom continues to be a strategic partner in
India
supporting India’s freight revolution and passenger movement. With 6 industrial sites and 5 major engineering
centres, the company not only caters to domestic project needs, but also delivers for many international projects.
Supporting the government’s modernisation initiatives, Alstom has been at the forefront of introducing several
breakthrough technologies in India with world class rolling stock, rail equipment & infrastructure, signalling and
services. Fully aligned with the country’s vision of Make-in-India and Aatmanirbhar Bharat, Alstom remains deeply
committed to strengthening its local sourcing and supply chain ecosystem.
Contacts
Press

HQ
Stéphane SAVIGNARD – TEL : +33 (0)7 63 00 48 76
stephane.savignard@alstomgroup.com


India
Ankita UPADHYAY – TEL: +91 88269 46333
ankita.upadhyay@alstomgroup.com


Investor Relations
Cyril GUERIN - Tel.: +33 (0)6 07 89 36 16
cyril.guerin@alstomgroup.com

Guillaume GAUVILLE - Tel: +44 (0)7 588 022 744
guillaume.gauville@alstomgroup.com

Estelle MATURELL ANDINO - Tel: +33 (0)6 71 37 47 56
estelle.maturell@alstomgroup.com

Jalal DAHMANE - Tel: +33 (0)6 98 19 96 62
jalal.dahmane@alstomgroup.com