Endless consumables
Filters, chemicals, and membranes that demand constant replacement and generate secondary waste.
Deep-Tech Water Technology Startup
Navigating Practical Solutions
Through multidisciplinary mastery and pioneering innovation.
A deep-tech water technology startup turning molecular science into deployable infrastructure — starting with consumable-free arsenic removal from groundwater.
Science with sustainability. From the lab to the field.
5
Granted Patents
13
Field Sites
3.19M
Litres Delivered
4
R&D Verticals
Built for trust-heavy water infrastructure: lab validation, field deployment, measurement, and governance-ready scaling.
The gap we set out to close
The technology to clean water exists.
The sustainability does not.
Navmarg does not build another filter company. We rethink water treatment from the molecular level and connect science, hardware, measurement, and intelligence into one platform.
Unaffordable upkeep
Crore-rupee water plants fail when communities cannot sustain operations and maintenance.
Built for vendors, not villages
We design for long-term public value: low-maintenance systems that can keep working after deployment.
Our Mission
Advancing scientific pathways toward sustainable technologies for safe water.
Our Vision
To explore the boundaries of science and technology and build conscious innovation that truly uplifts society.
Full-stack water technology
What We Build
Four integrated verticals that stack together: science, contaminant removal, real-time measurement, and decision-support intelligence.
01
Contaminant Removal Engineering
Selectively removes contaminants without chemicals, consumables, or secondary waste.
02
Molecular-Scale Process Physics
Explains why separation works at the material level so performance is scalable and defensible.
03
Real-Time Measurement & Intelligent Diagnostics
Field sensors for continuous water-quality readings instead of delayed lab-only decisions.
04
Water Intelligence & Geospatial SaaS
Dashboards that map contamination and predict risk for governance and infrastructure planning.
Why Navmarg
Deep-Tech Moat
Molecular-scale science combined with selective separation creates defensible technology depth.
Integrated Verticals
Science, hardware, diagnostics, and dashboards build compounding value over time.
Massive Need
Water contamination requires reliable public infrastructure, not one-time sales.
Hardware + Software
Field systems and water intelligence combine into a full-stack water company.
Our journey
From school science to deployable infrastructure.
A timeline of research, field validation, institutional recognition, and early scale.
2018
Where it began
Arpit Kumar and Abhijeet Kumar begin arsenic work at the R&D Science Section, Bihar Bal Bhawan Kilkari, Patna.
2020
Lab to field
The first prototype is built and 3D-printed; structural setup and early field trials take shape at Maner, Patna.
2021
–22
–22
Phase 1 field pilot
With PHED's Pranjal centre, units deploy across Bhojpur and Buxar. Arsenic is cut to below 2 ppb with CSIR validation.
Jan
2023
2023
National empanelment
Empaneled by the Ministry of Jal Shakti under National Jal Jeevan Mission. UNICEF Phase 2 and MARU-MIS follow.
Sep
2023
2023
Company incorporated
Navmarg is founded on 13 September 2023, with recognition from DPIIT India, Startup Bihar, and MSME India.
2024
Recognition
Samsung Solve for Tomorrow Champion, AIM-ICDK India Winner, Hult Global Summit Finalist, and incubation support.
2025
Scale & first revenue
A 5,000 LPH municipal-scale plant runs in Bhojpur and commercial deployments begin.
2026
National stage
Hult Prize India National Winner and Innovation in Water Technology Award; 3.19 million litres delivered across 13 sites.
The full stack
Next: real-time diagnostics and geospatial water intelligence for national replication and South Asia transfer.
Impact & Traction
METAL® is out of the lab and in the field — delivering arsenic-safe water across school and community sites, validated by scientific institutions and recognized under public water infrastructure pathways.
3.19M
Litres of arsenic-safe water
2020–2026
6,200+
Lives directly impacted
13
School & community sites
<2
µg/L arsenic achieved
WHO limit: 10 µg/L
National Arsenic Technology
CSIR-IICT & CGCRI Validated
Jal Jeevan Mission Empaneled
~63,700 L Backwash Avoided
99.5%+ Removal Efficiency
Navmarg operates from Patna, Bihar and Manipal, Udupi, Karnataka. The company is incubated at MUTBI Manipal and ICCW IIT Madras, with prior graduate incubation at FITT IIT Delhi and NSRCEL IIM Bengaluru under the Campus Founder Program.
Institutional trust
Our Associations
Government, research, academic, incubation, and development ecosystem partners that strengthen the credibility of the work.
Testimonials
Words from scientists and administrators
People who have worked with the team and seen the technology move from research to field deployment.
“
As Chief Scientist at CSIR-Indian Institute of Chemical Technology, Hyderabad, I have witnessed the team's remarkable dedication and passion in water sciences. Their innovative low-cost arsenic removal device, employing multimedia filtration and magnetic separation with Neodymium iron boron magnets, stands as a testament to their multidisciplinary approach and commitment to societal welfare.
Dr. Sundargopal SridharChief Scientist, CSIR-IICT Hyderabad
“
At Bihar Bal Bhawan Kilkari, our mission is to nurture innovation, creativity, and a scientific mindset in every child. The Arsenic project is a prime example, where our young researchers have dedicated five years of diligent work. Their technology requires minimal maintenance, no consumables or chemicals, resulting in remarkably low ongoing costs.
Jyoti PariharDirector, Bihar Bal Bhawan Kilkari, Department of Education, Government of Bihar
“
Researchers have concluded from this project that arsenic can be removed from water by engineering over its magnetic properties. The current design successfully reduces 165 ppb of arsenic to Below Detection Limits. I am very confident in the success of this project for governmental projects and international implementation.
Sanjeev Kumar, IASDirector, Science and Technology, Government of Bihar
“
I supervised these young researchers in developing an arsenic elimination technology using magnetic fields. Their groundbreaking work effectively removed 99% of arsenic from groundwater. It is heartening to witness their creation of an affordable, effective solution that can potentially save lives across the nation.
Dr. Prolay DasProfessor, Department of Chemistry, IIT Patna