Introduction
For decades, India has
been among the world’s largest buyers of medical imaging equipment. The country’s
hospitals, both public and private, have relied almost entirely on imported MRI
scanners from a handful of global giants based in the United States, Germany,
Japan, and China. This dependence has not only
drained the nation’s foreign exchange reserves but has also kept healthcare
costs artificially high and limited access to advanced diagnostics for millions
of poor Indians.
But that story is finally changing. In a development that has sent ripples
through the global med tech industry, a Bengaluru-based start-up called
Voxel Grids has built India’s first fully indigenous 1.5-tesla MRI scanner.
What
makes this achievement truly remarkable is not just the technology itself, but
the dramatic chain of events that unfolded around it — including a multinational corporation’s attempt to buy out the company
offering an exorbitant price, and thanks to the last-minute intervention by
Tata Trusts and Sridhar Vembu of Zoho
that kept this critical technology in Indian hands.
This is a story about
innovation, national pride, public health and geopolitics. It is a story about how India is quietly but decisively moving towards
self-reliance in one of the most complex and strategically important sectors of
modern healthcare.
The Global MedTech Monopoly: How a Handful of Giants Control the Market
To understand why Voxel
Grids’ achievement matters so much, we first need to appreciate the scale of
the monopoly that has dominated the global MRI industry.
A handful of multinational
corporations control the world’s Magnetic Resonance Imaging (MRI) industry.
According to a market study by the Competition Commission of India, the top
five original equipment manufacturers — Siemens, GE, Philips, United Imaging
and Hitachi — account for over 91 per cent of MRI market revenue in India.
These companies are based in the United States, Germany, China and Japan.
This near-monopoly has had serious consequences for India. With no
domestic alternative, Indian hospitals have had no choice but to pay whatever
prices these global giants demanded. An imported 1.5-tesla MRI machine can cost
anywhere between ₹3 crore and ₹4.5 crore. Add to that the high costs of
installation, maintenance, and specialised infrastructure, and it becomes clear
why MRI services remain out of reach for most Indians.
The numbers tell a stark
story. India currently has only around 5,000 MRI machines, which translates to
roughly 3.5 scanners per million people. For a country of 1.4 billion people,
this is woefully inadequate. By comparison, developed nations have MRI
densities many times higher. The
lack of affordable diagnostics means that millions of Indians — particularly
those in smaller towns and rural areas — cannot access the advanced imaging
they need for early detection and treatment of serious conditions like cancer,
neurological disorders and cardiovascular diseases.
The ₹3,500 Crore Drain: India’s
Costly Dependency on[GS1] Imported Medical Devices
India’s reliance on
imported medical devices goes far beyond MRI scanners. It is a systemic problem
that has cost the nation billions of dollars and continues to undermine public
health.
India imports between 70
and 80 per cent of its medical devices by value. In financial terms, the
numbers are staggering. India imported medical devices worth $8.1 billion
(approximately ₹94,000 crore) in the financial year 2023-24, while exports
stood at just $3.7 billion. This trade deficit of over $4 billion underscores
the structural import dependency that has plagued the sector.
In the five years between
FY2020-21 and FY2024-25, India spent over USD 25 billion in foreign exchange on
imports of electro- medical equipment. For MRI-related products alone, the
annual import bill is estimated at around ₹3,500 crore.
This dependency is not just an economic problem — it is a matter of
national security and public health. When global supply chains are disrupted,
as they were during the COVID-19 pandemic, India’s healthcare system becomes
vulnerable. The pandemic exposed just how precarious this dependency is, and it
served as a wake-up call for policymakers and industry leaders alike.
The government has recognised this challenge. The Production Linked
Incentive (PLI) scheme for medical devices, with a budget of ₹3,500 crore, was
launched to boost domestic manufacturing. More than 50 high-end medical devices
have begun to be manufactured in India under this scheme. However, the overall
import dependence figure has reduced dramatically. This is precisely why Voxel Grids’
breakthrough is so significant — it represents a genuine, home-grown solution
to one of India’s most persistent healthcare challenges.
Voxel Grids’ 1.5 Tesla Revolution: A Technical Breakthrough with a Human Touch
The story of Voxel Grids
begins with its founder, Sri Arjun Arunachalam, a 47-year-old
electronics engineer who specialised in MRI physics at the University of
Wisconsin-Madison. After spending nearly three years at GE Health Care’s
research centre in America around 2008-09, Arunachalam returned to India with a
dream — to build an MRI machine that was truly Indian.
What he and his team
achieved over the next 12 years is nothing short of extraordinary. Voxel Grids
has developed a 1.5-tesla MRI scanner that is not merely a copy of existing
machines but incorporates original technological innovations.
What Makes It Different?
First, the Voxel Grids MRI
scanner eliminates the need for liquid helium for cooling. Traditional MRI
machines require large quantities of liquid helium, which is expensive,
difficult to source, and requires specialised handling. By removing this requirement, Voxel Grids has made its scanner around 40
per cent cheaper to manufacture.
Second, the company has engineered highly compact and well-packaged
electronics around the magnet without compromising the bore size. This makes the machine far more
power-efficient and significantly reduces operating costs.
Third, the scanner is around 50 per cent lighter than conventional
machines, making installation easier and reducing infrastructure requirements.
Fourth, and perhaps most importantly for patients, the Voxel Grids MRI
scanner does not depend on costly air-conditioning infrastructure. This
is a game-changer for smaller hospitals in India’s smaller cities and towns,
where such infrastructure is often unavailable or prohibitively expensive.
Pay-Per-Use: Making MRI Accessible to
All
Perhaps the most
innovative aspect of Voxel Grids’ approach is its business model. The company
offers pay-per-use pricing models, allowing hospitals to spread costs over time
instead of paying a large upfront amount. This is particularly beneficial for
smaller hospitals that struggle with the high capital expenditure associated
with MRI machines.
This model could
substantially expand India’s MRI footprint. Industry experts believe that the
indigenous MRI scanner could eventually reduce the cost of an MRI scan by up to
70 per cent. This would make advanced diagnostic imaging affordable and
accessible to millions of Indians who currently cannot afford it.
The MNC Acquisition Plot: How India Almost Lost Its Home-grown MRI
Building an MRI machine is not for the faint-hearted. It is one of the
most complex and technologically demanding medical devices ever created,
requiring years of research, enormous capital and expertise across physics,
electronics, software and precision engineering.
Arunachalam and his team at Voxel Grids were running out of money while
competing against corporations worth billions. Then, during the COVID-19
pandemic, a multinational medical technology company approached the startup
with a lucrative acquisition offer.
It was a tempting offer. The
financial uncertainty was immense, and the easy way out would have been to sell
the company and walk away. But Arunachalam made a difficult decision — he
rejected the deal despite huge financial provocation.
“We thought partnering with the
company would risk our innovation. We wanted to ensure that this technology
remained India’s own,” he told India Today Digital. He viewed that partnering
with a multinational would come at the cost of the very innovation he was
trying to build.
It is common knowledge in the industry that most MNC giants offer to be
partners and then gobble up their partners. By selling to a global corporation,
India would have lost not just a company but the intellectual property, the
technology, and the opportunity to build a domestic med tech manufacturing
ecosystem at an affordable cost for commoners.
The
Tata-Zoho Masterstroke: Keeping India’s Innovation in Indian Hands
Just when things looked
bleakest for Voxel Grids, two of India’s most respected institutions stepped in.
Tata Trusts, then led by
the late Ratan Tata, provided crucial financial support that helped Voxel Grids
continue its research and product development without giving up ownership.
Later, Zoho founder Sridhar Vembu also backed the company, putting in ₹35 crore
through Zoho simply out of gratitude for the motherland.
This funding was a lifeline. It allowed the start up to survive long
enough to develop what could become India’s first indigenous MRI scanner. More
importantly, it ensured that this critical technology remained in Indian hands.
The backing from Tata
Trusts and Zoho is significant not just for what it achieved but for what it
represents. It is a powerful statement that Indian institutions are willing to
invest in deep-tech innovation, even when the risks are high, and the returns
are uncertain. It is a testament to the
vision of leaders like Ratan Tata and Sridhar Vembu, who understood that
building a self-reliant India requires more than just policy — it requires
courage, conviction and capital.
A Game-Changer for Public Health
The implications of Voxel Grids’
breakthrough for public health in India are immense.
Lower Costs, Greater Access
The most immediate impact
will be on cost. The Voxel Grids MRI scanner can be manufactured at nearly 40 per
cent lower cost than imported alternatives and is around 50 per cent lighter.
The company estimates that MRI scan costs could eventually fall by up to 70 per
cent.
This is not just a marginal improvement — it
is transformative. For a patient in a rural area who currently has to travel
hundreds of kilometres to the nearest city for an MRI scan, a 70 per cent
reduction in cost could mean the difference between getting a diagnosis and
going without.
Expanding India’s MRI Footprint
With only around 5,000 MRI
machines for a population of 1.4 billion, India has a vast gap in diagnostic
infrastructure. Voxel Grids currently has the capacity to manufacture 20 to 25
MRI scanners annually at its Bengaluru facility. While this scale is modest
compared to global manufacturers, it is a crucial first step.
The company is also
working on developing a containerised mobile MRI unit. This could revolutionise
healthcare delivery in remote and underserved areas, bringing advanced
diagnostics directly to communities that have never had access to such
services.
Creating a Domestic Med Tech
Ecosystem
Beyond the immediate impact on patients, Voxel Grids’ success is helping
to build a domestic med tech ecosystem. The company says nearly
every component of its MRI scanner, from hardware and electronics to imaging
software, has been designed in-house. This means
that India is not just assembling imported components — it is building the
intellectual property, the manufacturing capability, and the talent pool that
will drive future innovation.
Med tech Geopolitics: A New Chapter
for a Self-Reliant India
The Voxel Grids story is
not just about healthcare — it is about geopolitics. In an increasingly
uncertain world, where supply chains are fragile and trade tensions are rising,
the ability to manufacture critical medical devices domestically is a strategic
imperative.
Reducing Dependency on Foreign Powers
For years, India has been
at the mercy of foreign suppliers for its medical devices. This dependency has
had serious implications not just for public health but for national security.
When global supply chains are disrupted, as they were during the COVID-19
pandemic, India’s healthcare system becomes vulnerable.
By building its own MRI
scanners, India is reducing its dependency on the United States, Germany, Japan
and China. This is not about isolationism — it is about resilience. It is about
ensuring that Indian patients have access to the diagnostics they need at a cheaper
cost, regardless of what is happening in the rest of the world.
Positioning India as a Global Med tech
Hub
The Voxel Grids
breakthrough also positions India as a potential global med tech hub. Prime
Minister Narendra Modi has highlighted India’s growing self-reliant medical
technology ecosystem, noting that more than 50 high-end medical devices have
started being manufactured in India under the PLI scheme.
The Indian medical device
sector is currently valued at around $14 billion and is projected to reach
$30-50 billion. The MAHA Med Tech Mission aims to make India a global hub for
AI-driven medical tech exports. Industry experts say that geopolitical shifts
and ongoing supply chain disruptions have made Med Tech manufacturing a
strategic priority for India.
A Model for Other Developing Nations
The Voxel Grids story
offers lessons for other developing nations that are seeking to build their own
med tech capabilities. It shows that with
determination, innovation, and the right support, it is possible to break into
industries that have long been dominated by a handful of global giants.
It also shows the importance of keeping critical technology in domestic
hands. Had Voxel Grids sold to a multinational corporation, India would have
lost not just a company but the opportunity to build a domestic med tech
ecosystem. The Tata-Zoho intervention ensured that this did not happen.
Conclusion: A Historic Victory for India
The development of India’s first
indigenous MRI scanner is a historic victory for the country. It is a victory
for innovation, for public health, and for the vision of a self-reliant India. It is also a victory for the ordinary Indian patient. For decades,
millions of Indians have been denied access to advanced diagnostics because of
high costs and limited infrastructure. The Voxel Grids MRI scanner has the
potential to change that, making MRI scans affordable and accessible to people
in every nook and corner of the country.
The story is also a powerful reminder of what can be achieved when
Indian institutions and individuals work together. The Tata Trusts and Zoho did
not just provide funding — they provided
a lifeline that kept a critical technology in Indian hands. Their intervention
was a masterstroke that will benefit generations of Indians.
As
India continues its journey towards self-reliance in medical technology, the
Voxel Grids breakthrough will be remembered as a turning point. It is proof that India can compete with the
best in the world, that Indian innovation can solve Indian problems, and that the dream of a self-reliant India is not just a slogan — it is a reality in the making.
Disclaimer: This blog post is a personal reflection based
on the author’s understanding of the indigenous MRI development project. The
content herein is compiled from published documents, media reports, and
publicly available information. While every effort has been made to ensure
accuracy, this article is intended for informational and inspirational purposes
only and does not claim to be an official historical record. The author
acknowledges the inherent limitations of secondary sources and welcomes any
clarifications or corrections. The views expressed are solely those of the
author, a super senior citizen, and are not intended to diminish or dispute any
official narratives. Any unintentional errors or omissions are deeply
regretted.
No comments:
Post a Comment