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The Chennai Climate Consortium, known simply as C3, is a pioneering effort by EAI and its business partners to dramatically accelerate decarbonization for Chennai-based industries & commercial units through a Think Local approach.

C3 is a community of passionate, action oriented Chennai folks keen to contribute their bit to fight climate change.

C3 is possibly the first industry-led city-focused climate action platform in the world.


C3 is at the core a multi-stakeholder collaboration platform that facilitates all the key drivers for faster decarbonization – low carbon solution awareness & intelligence, effective interactions between key stakeholders, And faster commercialization of innovations to fight climate change

C3 does these through a mix of research, workshops, awareness programs, and multi-stakeholder engagement facilitation.

C3 is run by a core team comprising stakeholders from key components of the climate action ecosystems – startups, investors, end users, policymakers, consultants, academic researchers, and also media.


The C3 core team as of February 2023 comprises the following:

Narasimhan Santhanam (Narsi)

Director, EAI – a climate tech consulting firm

Nithish Sairam

CEO, Illumine-i – solar solutions startup

Toine van Megen

Co-founder, Auroville Consulting – a firm focusing on climate policy design & support

Vineeth Vijayaraghavan

SPI Family office – representing investors

Satyanarayanan Seshadri

Faculty, IIT Madras – with a keen research interest in low carbon energy & climate tech

Ramesh Matham

Associate Editor – Business Line – representing the media


C3 Portal

C3 Updates

Get to know the latest updates on climate action for Chennai

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C3 Profiles

Get to know people & organizations at the forefront of climate action

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C3 Insights

Insights & intelligence on Chennai focussed decarbonization topics from the C3 research team.

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C3 Events

Latest updates and listing of climate action events in and around Chennai

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C3 Connect

The spot where decarbonization solution providers can connect with industries who need their solutions, all with a Chennai focus.

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C3 Club

Join the community of folks passionate about climate action for Chennai


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Contact C3


Chennai Climate Consortium (C3)

A5C, Anugraha, 41, Nungambakkam High Road

Nungambakkam, Chennai 600034

Landmark: Next to the Taj Coromandel hotel

Email: c3@eai.in