Safer water. Every drop.
Nature-inspired water disinfection technology
No chemicals, no consumables.
Our patented offering, the palm-fitting Maji:Taraltec® device, eliminates +99% of the microbes behind diarrhoea, cholera, typhoid and dysentery.
We partner with CSR teams, Foundations and Government bodies who want to bring lasting impact to the communities that need water the most.
"It is not a filter, but a technology that puts science to good use."
The device — fit and forget, zero maintenance
The Maji:Taraltec® Reactor
Fits over 95% of the world's hand pumps
It retrofits into any existing India Mark II/III hand pump as a one-time fitting onto the riser pipe. A local plumber installs it with standard tools, following our YouTube instructions, and nothing changes for the person at the pump.
- Weight
- Under 1 kg, palm-sized
- Compatibility
- India Mark II / III hand pump · over 95% of the world's hand pumps
- Install
- One-time retrofit · standard plumbing tools · under an hour
- Power
- Zero · driven by the ordinary motion of pumping
- Consumables
- None. No filter to replace, no maintenance
- Carbon footprint
- Zero
The underlying science
Inspired by biomimicry… and by a shrimp
The snapping shrimp stuns its prey with a single collapsing cavitation bubble. The Maji:Taraltec® Reactor does the same, millions of times over and powered only by the pumping, rupturing waterborne microbes at the source. No power, no chemicals, no filter.
-
Jet
Pumping forces water through the reactor's geometry at speed, just as a shrimp's claw fires a jet.
-
Cavitation bubble
The jet's pressure drop opens millions of tailored micro-bubbles at precise points in the flow.
-
Collapse & shockwave
Each bubble collapses in an instant, releasing a shockwave that ruptures microbes and the viruses riding on them.
2 billion
people worldwide use a faecally contaminated drinking-water source
World Health Organization
600 million
Indians live under high-to-extreme water stress
NITI Aayog · Composite Water Management Index, 2018
200,000
Indians die each year from unsafe drinking water
NITI Aayog · Composite Water Management Index, 2018
The pressing need
To eradicate disease-causing microbes from water
Across rural India, millions draw and drink hand-pump water straight from groundwater aquifers. Untreated, the microbes it carries harm rural lives and livelihoods, the illnesses that keep children out of school and hold families back.
Impact across India
Proven where it matters
Lab-tested, and piloted in the field
Water from Maji:Taraltec®-fitted hand pumps has been tested at independent NABL-accredited laboratories and piloted with WaterAid India and government partners across several states. The reactor is also listed on the Government e-Marketplace (GeM) as an OEM.
+99%
microbial contamination physically killed
Product claim, lab-tested
+3M
people reached with safer water across India
Company figure
10
Indian states with reactors deployed
Deployment, 2024
0
power, chemicals, consumables or filters
Fully mechanical, by design
Where it's working
Maharashtra
Junnar, Pune, Amravati, Sambhajinagar, Beed, Jalna, Wardha, Washim, Palghar, Nandurbar, Sinnar, Ranjangaon, Chandrapur
Rajasthan
Bharatpur, Bikaner, Udaipur, Dholpur, Dausa, Pratapgarh
Uttar Pradesh
Gajraula, Gorakhpur, Varanasi, Noida, Kanpur, Bahraich
Bihar
Bodh Gaya, Begusarai
West Bengal
Barrackpore, Digambarpur, Pratapadityanagar
Assam
Jorhat, Dibrugarh, Majuli
Odisha
Bhadrak
Jharkhand
Giridih
Tamil Nadu
Dharmapuri
Arunachal Pradesh
Namsai
Safer water, flowing across 10 states
Reactors are fitted on hand pumps in dozens of districts, from Maharashtra and Rajasthan to Assam and Arunachal Pradesh in the northeast. Each is a place where families now draw safer water from the pump they already use.
"Taraltec Reactor, when fitted on India Mark II hand pump, helps in removing E. coli… the number of hand pumps reporting E. coli bacteria has declined significantly… once installed required no maintenance."
"The water does not smell anymore, and we have stopped going to the other hand pump since this machine was installed."
Awards & accolades
National and International
- National Startup Award 2020Water & Water Networks · Govt of India
- Maharashtra Startup Week 2020Sustainability · Govt of Maharashtra
- Best Innovation, RISC 2019NIRD & PR · Ministry of Rural Development & Panchayati Raj
- Leaders in Innovation Fellowship 2018Royal Academy of Engineering · UK
- India Innovation Growth Programme 2.0, 2017DST · Lockheed Martin · Tata Trusts
- Museum of Solutions (MuSo)Exhibit · Mumbai
- Deutsches Museum, NurembergExhibit · 2021
- India–Israel PM visit 2017Technology showcased · NITI Aayog
- World Expo 2020, DubaiIndia Innovation Hub
"A great Indian innovation… The Maji, built by Anjan Mukherjee's @Taraltec, is a cheap, effective, electricity-free & chemical-free water-purifier for handpumps. Totally transformative for India and beyond!"
The India honours, on paper
National Startup Award 2020Govt of India (DPIIT) · Water & Water Networks
Leaders in Innovation FellowshipRoyal Academy of Engineering, UK (2018)
Maharashtra Startup Week 2020Sustainability
Best Innovator, RISC 2019NIRD&PR, Govt of India
India Innovation Growth Prog. 2.0DST · Lockheed Martin · Tata Trusts (2017)
IIGP Innovation MedalDST · Lockheed Martin (2012)
In partnership with
Anjan Mukherjee, Founder
About the Innovator-Founder
A bus journey through Bihar changed the plan
Anjan Mukherjee, a former marine engineer and IIM Bangalore alumnus, swapped corporate trajectories for a stark reality during a Bihar bus journey. Witnessing children permanently disabled by repeated childhood diarrhoea, he recognised a critical crisis and locked his focus on rural India's water sources. Choosing total autonomy over compromise, Mukherjee has consistently preferred self-funding to fuel a slow, relentless war against the root cause of water deprivation.
"Fit and forget for life."
Our underlying mission
To make safer drinking water affordable and accessible to all
Join our mission
Who can join our mission?
Specifically, we seek to continue to serve the underserved communities, at scale, through partnerships with CSR initiatives, NGOs, and local and central governments.