World’s cheapest water filter at Rs. 30 that can change millions of Indian lives


Niranjan Karagi with Nirnal Water Filter
Niranjan Karagi with Nirnal Water Filter

I am being shown a regular cola bottle (PET bottle) filled with what is told to be water, but is black, hazy, and resembles more of dust and dirt. Then a finger long cartridge is corked in like a bottle cap.  The chap who shows me this is tacitly observing the curiosity in my eyes, smiles, and takes a dramatic pause. He takes a long, transparent glass and starts squeezing the liquid from the bottle into the glass. That’s when ‘it’ happens. The liquid coming out on the other end is clean, crystal, transparent. After filling about half the glass, the chap gulps down the clean water in a gulp. Magic. Pure magic.  23 years old, dressed in a crisp blue shirt with ironed black trousers and eyes gleaming with a subtle hint of curiosity. The attire won’t give you clues about Niranjan Karagi and his innovative magic. He would seem clouded in a shroud of normalcy. But, he indeed is a magician. 

Growing up in Belgaum, Niranjan Karagi used to play with kids of a nearby government school. Every now and then, the kids would naturally feel thirsty and would drink water from the tap. No harm done. But, it was when Niranjan Karagi grew up and started his mechanical engineering degree that he found a sad peculiarity. “I saw that there was no filter in the school. Most kids drank water from the tap that was connected to an overhead tank. Upon further inspection, I came to know that the tank had not been cleaned for a year. A cleaning would only happen once a year, at most twice. I was stirred, to say the least,” says Niranjan. 

Niranjan’s first response was to donate a filter to the school. Upon inquiry, Niranjan found that most water filters in the market were expensive. Even if one was donated to the school, the school wouldn’t be able to manage its maintenance cost alone. “The expense of a water filter could never be borne by a government school, many of which are located in remote areas and run on shoestring resources,”remembers Niranjan. 

But, our magician didn’t stop there. 

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“As an engineer, you are always told to innovate and execute. I was thinking of a solution that was neither feasible nor innovative. I had to come up with something of my own. Something that fits in well to solve the pertinent and widespread problem of contaminated water”, he adds. 

Nirnal Water Filter by Niranjan Karagi

That is when Nirnal Water filter came into the picture. Starting with the development of multiple prototypes since 2016, Niranjan Karagi and his brother Pradumn have developed the Nirnal Water Filter. Nirnal is a cartridge-based filter that uses Nano-composite technology to filter dust particles (up to 5 microns) and bacteria up to 99.9%. A basic version of the filter costs Rupees 30, can fit on any regular PET bottle and can filter up to 100 liters of contaminated water.

“Our first prototype was distributed to almost 15000+ students in government schools across Maharashtra and Karnataka. Over the course of two years, we have sold and distributed 70,000+ filters, not only to school children, but to members of the Army, CRPF, and INS Vikramaditya. Our filters have also been exported to 8+ countries,” says a proud Niranjan. 

Niranjan Karagi and Pradumn at the India Innovation Summit 2019
Niranjan Karagi and Pradumn at the India Innovation Summit 2019

The unprecedented response towards Nirnal Water Filter is substantially justified, especially with respect to its wider social impact. “It does not consume electricity, does not waste a drop of water, utilizes existing PET bottles for reuse, and is cheap.” reiterates Niranjan, laying down why products like these are imperative. 

Niranjan Karagi and Pradumn winning the 2019 3M-CII Young Innovators Challenge Award
Niranjan Karagi and Pradumn winning the 2019 3M-CII Young Innovators Challenge Award

For their work with Nirnal Water Filter, Niranjan Karagi and Pradumn won the 2019 3M-CII Young Innovators Challenge Award in the Product Innovation category. This award only goes on to reaffirm the widespread viability of Nirnal Water Filter and the unfathomable potential it holds. 

Talking about unfathomable, and ambition, I asked Niranjan what is the plan for the future. Where do you want to take it? “We are already working variants on 6 different variants of the filter. But, the goal is to filter seawater into potable drinking water. That’s the goal,” Niranjan concluded.

Spoken like a magician. A large vision and a seemingly impossible task at hand, but still brimming with the confidence that it can be achieved. The greatest magic is yet to come.    

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43 Comments

  1. Avatar
    Mahalinga
    October 2, 2020
    Reply

    How to order this product.

  2. Avatar
    Raghavan P
    December 7, 2020
    Reply

    This is one of the innovative attempts towards clean drinkable water programmes. The final goal to produce clean water from sea water is much appreciated. Let us wish them to attain success.

  3. Avatar
    Bhavesh Shah
    December 9, 2020
    Reply

    Need some details about this product.

  4. Avatar
    NPC KHRIME
    December 9, 2020
    Reply

    Need 2 pieces of NirNal. Water quality of my house is full of iron thus have to do double manual sand filter then it is fit to consume. Wanted to try NirNal for the purpose.

  5. Avatar
    Ankit Roy
    December 9, 2020
    Reply

    How can I get this product at Agartala.

  6. Avatar
    December 10, 2020
    Reply

    How to buy nirnal water filter on manipur dealer

  7. Avatar
    Prashant shukla
    December 10, 2020
    Reply

    How to buy this

  8. Avatar
    Vijay Kr Goenka
    December 11, 2020
    Reply

    I would like to take distributor ship for entire north east Region
    Kindly send email to persue further on mail-

  9. Avatar
    नरेश सिं
    December 14, 2020
    Reply

    कहाँ मिलेगा

  10. Avatar
    Saraswathi Ravikumar
    December 14, 2020
    Reply

    Want to buy in bulk ..how to place order

  11. Avatar
    Yogita Mehta
    December 16, 2020
    Reply

    Where to get this product

  12. Avatar
    December 17, 2020
    Reply

    Where can i get details of purchase the waterfilter?

  13. Avatar
    Prasanna
    December 19, 2020
    Reply

    I need this product

  14. Avatar
    Huzefa Nasikwala
    December 20, 2020
    Reply

    Where can i get this product

  15. Avatar
    Raghavendra
    December 24, 2020
    Reply

    Hi Niranjan…

    Great job.. In this costliest world .. you have rendered cheapest purifier which is affordable to 80% of Indian Population.. This is much needed..

    Congrats once again.
    Is there any distribution contract for karnataka location .
    Please let me know
    All the best for other new ventures

    Regards
    Raghavendra

  16. Avatar
    AbhisheK kumar
    January 9, 2021
    Reply

    i want to purchase this ….can you give me link from there I can buy this

  17. Avatar
    Fakhruddin
    January 10, 2021
    Reply

    Where I can get this water purifier,how to order.

  18. Avatar
    Naib singh
    January 13, 2021
    Reply

    Where can I get details of purchases the water filter

  19. Avatar
    Naib singh
    January 13, 2021
    Reply

    Where can I get a details of purchases the water filter

  20. Avatar
    kolli Radha krishna murthy
    January 19, 2021
    Reply

    Namaste how to order our products
    please send address and contact numburs

  21. Avatar
    tapas sen
    February 4, 2021
    Reply

    i want two nos bottol filter , and two nos tap filter , pl guide which way purchase.

  22. Avatar
    Mayank Saini
    February 4, 2021
    Reply

    Please Tell me about How to Order this product.

  23. Avatar
    Ranjitha
    February 5, 2021
    Reply

    How can I get one

  24. Avatar
    Pavankumar
    February 5, 2021
    Reply

    How can we approach for business

  25. Avatar
    Danish ahmed
    February 5, 2021
    Reply

    Hi..Danish here from east Uttar Paradesh (Mau)..I want to know more about your water filter..how can i purchase it for self use as well as in bulk..kindly let me know..thank you
    Contact- 9795436776

  26. Avatar
    Raju
    February 5, 2021
    Reply

    How we purchase

  27. Avatar
    February 5, 2021
    Reply

    please send your cell no , we Nilaji villages use your product my cell no is 9481323940

  28. Avatar
    Ratnesh
    February 7, 2021
    Reply

    Where can I get details of purchase the water filter ?

  29. Avatar
    Yuvaraj N
    February 8, 2021
    Reply

    i need this product how i will contact

  30. Avatar
    B.Nageswara Rao
    February 8, 2021
    Reply

    Where can I purchase these products.

  31. Avatar
    February 8, 2021
    Reply

    No more Rs 30 I search this on other shopping it is more than Rs 200

  32. Avatar
    VvidyasagarM
    February 10, 2021
    Reply

    Requires nirnal filter

  33. Avatar
    SHARANAYYA SWAMY
    February 10, 2021
    Reply

    i need this water purifies Rs 30/- total 5 Qty

    how to order or any contact no. to purchase the product.

  34. Avatar
    anand
    February 11, 2021
    Reply

    i woud like to purchase

  35. Avatar
    Vanita
    February 11, 2021
    Reply

    How to order it. Is it COD available

  36. Avatar
    Harmeek singh
    February 13, 2021
    Reply

    How to order this product

  37. Avatar
    SHARANAYYA SWAMY
    February 13, 2021
    Reply

    Dear Sir,

    i need this product but no contact or address to buy

    so plz update or call me 7411979284
    kalaburagi.
    email id :- sharanuswami80@gmail.com

  38. Avatar
    venkata subbarao
    February 14, 2021
    Reply

    how to purchase this water filter my village peoples are suffer from drinking water

  39. Avatar
    Saleem
    February 15, 2021
    Reply

    How to buy this water filter

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