India’s B35 Bullet Train: 350 Kmph Indigenous High-Speed Train Targeted for 2030
India is preparing for another major milestone in high-speed rail technology with plans to develop an indigenous bullet train capable of a design speed of 350 kmph by 2030. The proposed train, referred to as the B35, represents a significant step in the country’s efforts to develop advanced railway technology within India.
The development is closely linked with the country’s first major high-speed rail project, the Mumbai-Ahmedabad High-Speed Rail (MAHSR) corridor. The project is also becoming an important platform for building domestic expertise in high-speed trains, signalling and train-control technology.
The B35 initiative comes at a time when India is already working on the B28 high-speed train platform. While B28 trains are intended to support the initial phase of high-speed services, the proposed B35 could represent the next stage of India's indigenous high-speed rail ambitions.
What Is India’s B35 Bullet Train?
The B35 is a proposed indigenous high-speed train platform designed for a 350 kmph design speed. The objective is to develop a train in India that can operate at the level expected from the next generation of high-speed rail technology.
The project is particularly notable because it focuses not simply on assembling imported trains, but on developing domestic capabilities for high-speed railway technology.
According to the reported plans, India has already initiated the process of developing the B35. The target of 2030 places the programme alongside Japan's plans for its next-generation E10 high-speed trains.
Why the 350 Kmph Target Matters
Speed is only one part of a high-speed railway system. A train designed for speeds of around 350 kmph requires advanced engineering, sophisticated signalling, reliable braking and acceleration systems, strong track infrastructure and highly coordinated train operations.
Therefore, the B35 programme could have implications beyond the train itself. The technologies and engineering expertise developed through such a project could contribute to India's wider high-speed rail ecosystem.
Mumbai-Ahmedabad Bullet Train Project Provides the Foundation
The B35 development is being discussed alongside the Mumbai-Ahmedabad High-Speed Rail project, India's flagship bullet train corridor.
The corridor covers approximately 508 kilometres and is being developed as a dedicated high-speed railway connection between Mumbai and Ahmedabad.
The project has undergone a substantial revision in its estimated cost. The latest reported estimate places the total project expenditure at more than ₹2 lakh crore, almost twice the original estimate prepared in 2015. Around ₹1 lakh crore of the increased expenditure is expected to come through budgetary support.
The rising project cost reflects the complexity and scale of creating a completely new high-speed railway infrastructure system.
Where the Money Is Going
Several components of the project have experienced significant cost increases.
Land acquisition expenses have increased substantially compared with the original estimates. Infrastructure costs have also risen, while expenditure associated with trains and signalling systems has increased considerably.
These changes illustrate an important point about bullet trains: the overall investment is not limited to purchasing rolling stock. A high-speed railway requires dedicated infrastructure, specialised systems and extensive safety arrangements.
B28 Will Come Before B35
India's high-speed rail development is not expected to move directly from conventional trains to B35.
The country is already developing the B28 high-speed train, which is intended to support the initial operations of the Mumbai-Ahmedabad corridor.
The B28 has a design speed of 280 kmph, while its maximum operating speed is reported at 249 kmph. BEML has received contracts connected with the production of these trains, including an order for 32 B28 trainsets. The first two prototype trains are targeted for trial preparation during the first quarter of 2027.
This makes B28 an important stepping stone in India's high-speed rail manufacturing journey.
The experience gained from designing, manufacturing and testing B28 trains could potentially help engineers and manufacturers address some of the technical challenges associated with the faster B35 platform.
India Is Also Developing Its Own Train Control System
One of the most important aspects of the B35 initiative is that India's high-speed rail ambitions extend beyond train manufacturing.
The country is also working toward developing its own Bharat Train Control System (BTCS).
Train control technology plays a critical role in high-speed railway operations. At very high speeds, trains travel long distances within seconds, making precise control, signalling and safe separation between trains essential.
A domestic train-control system could therefore become an important component of India's broader high-speed railway capabilities.
Developing this technology domestically could also provide Indian engineers and railway organisations with greater experience in managing advanced rail operations.
Japan’s E10 Plans and the Changing Technology Landscape
Japan has been a major global reference point for high-speed rail technology. Its Shinkansen system has decades of experience in high-speed passenger operations.
According to the reported information, Japan indicated in December 2024 that production of its existing E5 series trains would gradually be phased out. The next-generation E10 series is expected to enter production in 2030, with operations targeted for 2034.
The timing is significant because India's B35 development target is also set around 2030.
The Mumbai-Ahmedabad project could potentially consider the use of E10 trains once they become available, while India simultaneously works toward developing its own high-speed platform.
What B35 Could Mean for India’s Railway Industry
The proposed B35 could have a wider impact on India's railway manufacturing sector.
Growth of Domestic Manufacturing
High-speed trains require specialised components, engineering systems and manufacturing processes. Increasing domestic production could encourage Indian companies to develop capabilities in these areas.
Over time, this could create opportunities across areas such as electrical systems, train components, engineering services, testing and maintenance.
Development of Skilled Expertise
High-speed rail also requires specialised technical knowledge. Engineers and technicians working on B28 and B35 projects could gain experience in areas that are relatively new to India's railway manufacturing ecosystem.
This expertise could become useful for future high-speed rail projects.
Potential for Standardisation
If India successfully develops domestic high-speed train platforms, future corridors could potentially benefit from standardised train designs, components and maintenance practices.
Such standardisation can make training, procurement and maintenance more manageable as a high-speed rail network expands.
The Bigger Picture: India’s High-Speed Rail Ambition
The B35 announcement should be viewed as part of a longer technological journey rather than simply a race to achieve a particular speed.
India is gradually building the infrastructure, manufacturing capability and technical expertise required for high-speed rail.
The Mumbai-Ahmedabad corridor is the first major foundation. B28 represents an important domestic manufacturing step, while B35 points toward a more advanced generation of indigenous high-speed trains.
The combination of rolling-stock development and domestic train-control technology could eventually give India greater control over important parts of its high-speed rail ecosystem.
Challenges Ahead for B35
Developing a 350 kmph train is a technically demanding task. Designing a train is only one part of the challenge. The complete railway system must be capable of safely supporting high-speed operations.
Infrastructure, signalling, testing, maintenance and operational procedures all need to work together.
Cost is another major consideration. The substantial increase in the estimated cost of the Mumbai-Ahmedabad project demonstrates the financial scale associated with building high-speed rail infrastructure.
Meeting the 2030 B35 development target will therefore require sustained engineering work, testing and coordination across multiple areas.
What Passengers Could Eventually Gain
If India's high-speed rail network expands successfully, passengers could benefit from significantly shorter travel times between major cities.
High-speed rail can also create stronger economic links between urban centres by making frequent intercity travel more convenient.
For businesses, faster connections can make same-day travel between major cities more practical. For the wider economy, improved connectivity can support tourism, commercial activity and regional development around high-speed rail stations.
However, the actual benefits will depend on factors such as fares, network coverage, service frequency and the completion of supporting infrastructure.
Frequently Asked Questions
What is the B35 bullet train?
B35 is the proposed indigenous Indian high-speed train platform being developed with a target design speed of 350 kmph.
When is India targeting the B35 train?
India is targeting 2030 for the development of the B35 high-speed train.
How fast will the B35 bullet train be?
The proposed B35 has a design speed of 350 kmph.
What is the B28 train?
B28 is an indigenous high-speed train platform being developed ahead of B35. It has a design speed of 280 kmph and a reported maximum operating speed of 249 kmph.
Which route is associated with India’s first bullet train project?
The Mumbai-Ahmedabad High-Speed Rail corridor is India's first major dedicated high-speed rail project. It is approximately 508 kilometres long.
Is India developing its own train-control technology?
Yes. India is also working on the Bharat Train Control System (BTCS) as part of its efforts to develop domestic high-speed railway technology.
Conclusion
India's proposed B35 bullet train marks an important phase in the country's high-speed rail journey. With a 350 kmph design-speed target for 2030, the project goes beyond introducing faster trains. It represents an effort to build domestic expertise in high-speed rolling stock, train-control technology and railway engineering.
The B28 platform and Mumbai-Ahmedabad High-Speed Rail corridor provide an important foundation for this development. At the same time, the substantial cost and technical complexity of high-speed rail highlight the scale of the challenge ahead.
If the B35 programme progresses according to its target, it could become an important milestone in India's attempt to develop a stronger indigenous high-speed railway ecosystem. The next few years will therefore be significant for determining how quickly India's bullet train technology moves from development and testing toward wider deployment.