Our Story

Founded in 2009 by the benign efforts of Chandrasekaran. J, an expert in Plastics Technology, the proprietary firm “Custom Parts Online” started making many innovative products to address the soaring needs of common people.

Under the license from IMMT (CSIR), Bhubhaneshwar in the year 2010 by Custom Parts Online, the poor man's water purifier, popularly known as ‘CPO Natural Terafil®™ Water filter’ was manufactured which was later exclusively run by WATSAN Envirotech Private Limited. Later in 2013, Mr. P. N. Subramanian, an IT Professional with 35 years of experience in HR, Strategy & Planning headed WATSAN as the Co-founder.

The name WATSAN was coined by blending the words ‘Water’ and ‘Sanitation’, which are the two main aspects of our establishment. WATSAN’s sole purpose is to provide water and sanitary solutions to the rural population by manufacturing and distributing low-cost, yet effective electricity-free water filters to urban slums and rural families who cannot afford other expensive options.

Since the inception of the water purifier unit, WATSAN gained a prominent place in the rural market. Soon after, the modular toilet unit was established to attend to the thriving sanitary requirements of the nation. WATSAN is committed to deliver quality drinking water and sanitary requirements with eco-friendly resources at an affordable price tag. WATSAN’s pioneering steps in bringing welfare to the nation has been recognized and had been lauded with numerous awards for the great services it has offered.


Our aim is to use technology as a fulcrum for providing the most affordable and effective drinking water and sanitary solutions.


To improve the living standards of at least 100 million families within the next three years by providing the most efficient, electricity-free, affordable water filters and ready-to-fit toilets, ensuring a dignified, happy and healthy life.

Our Team

Chandrasekaran. J

Chandrasekaran. J, Founder & CEO

Chandrasekaran has been in the industry for more than 27 years. He emerged as the Topper in Plastics Technology and also has profound knowledge in Designing, Prototyping and manufacturing various products in metals, plastics, and other diverse materials. He currently holds the position of National Consultant for United Nations Industrial Development Organization (UNIDO). He has undergone training after obtaining license from IMMT (CSIR), Bhubaneswar, to manufacture Terafil water filters and proudly holds 3 patents to his credit. Chandrasekaran won the National Award from G.O.I for Innovation in 2012 and 2015.

P N Subramanian

P. N. Subramanian, Director

P. N. Subramanian joined as a Co-founder in WATSAN Envirotech Private Limited in 2013. He is also the Stakeholder and Director of the company. He is a serial entrepreneur who has several years of Experience in various industries in India and other Geographies. Subramanian is a TiE Charter Member and a Management Expert who has a Bachelor's degree in Mechanical Engineering from REC, Trichy and MBA from XLRI. He has over 35 years of experience in the formation of companies, Strategic Planning and Human Resources Management.

Anurag Gupta

Anurag Gupta,Mentor

Anurag has over 20 years of experience and is now serving as Board Member and CEO for Indian organizations. He has built and led businesses ranging from $55m to $100m across India and APAC regions. His core expertise lies in Building organizations, P&L management, Growth Hacker. He also holds a MBA from NYU Stern and LSE.


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National Award from the Ministry of Petrochemicals in 2012
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National Award from the Ministry of Petrochemicals in 2015
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FORCE-PARK Shared Value Award for 2014 – Innovation for BoP, in memory of Shri. C.K. Prahalad
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Finalist 2014 – DBS-NUS Social Venture Challenge Asia
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Finalist 2015 – Empowering your Ideas
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Finalist 2015 – Tata Social Enterprise Challenge
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India’s Hottest Young Entrepreneur Award by Business World
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Millennium Alliance Round 3 Award on 14 April 2016, FICCI, New Delhi
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Runners up in cleancubator Chennai on 21st April 2016
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We won Millennium Alliance Grant for 40 lakhs rupees which would be given in 3 tranche starting July 2016.
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MA Certificate
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Watsan Directors receiving the MA Award

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