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Meet Sumant

Sumant Sinha

Sumant Sinha is the Founder, Chairman and Chief Executive Officer of ReNew, one of India’s largest clean energy companies and among the first from the country to list on Nasdaq. He founded it in 2011 with a conviction that India could power its growth differently, and has spent the years since proving that a clean energy company built in India can operate at global scale.

Under his leadership, ReNew has built a diversified clean energy portfolio spanning solar, wind and battery storage, with a total pipeline of close to 28 gigawatts. Having marked fifteen years of operations in 2025, the company now delivers end-to-end decarbonisation solutions, from solar manufacturing and carbon markets through to green hydrogen, which places it among the significant players in the global energy transition.

His work extends beyond the company he built. He co-chairs the World Economic Forum’s Alliance of CEO Climate Leaders, the largest CEO-led alliance on climate change, and is founding co-chair of the Bharat Climate Forum, which is working to position India as a global leader in clean technology manufacturing. He has served as President of ASSOCHAM, chaired the board of the Rocky Mountain Institute, and now chairs the CII Energy Transition and Hydrogen Council, roles that place him at the meeting point of industry, policy and international climate effort.

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Selected milestones & recognitions

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Appointed as the Co-Chair of WEF’s Alliance of CEO Climate Leaders.

Featured in the 2024 TIME100 Climate list.

Serves on USISPF’s Board and received the 2022 Global Leadership Award.

Awarded the Fellowship of the INSA in 2025 for his contributions to Clean Technology.

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The Early Years

IIT Delhi, 1987 IIT Delhi, 1987
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1983–1987
Sumant studied engineering at IIT Delhi, graduating with a B.Tech in Civil Engineering in 1987. His engineering education became the first lens through which he learnt to approach complex problems.
1987–1991
IIM Calcutta followed, before a Master's in International Affairs at Columbia University.
IIM Calcutta, 1989 IIM Calcutta, 1989
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1989
His career began with the Tata Administrative Service, offering an early understanding of how complex organisations operate and how large institutions turn ambition into execution.
1992
He moved into investment banking with Citicorp Securities in New York, followed by ING Barings.
1997
Rising to Managing Director of Capital Markets, he learned what moves capital, what builds investor confidence and what it takes to finance growth at scale.
Aditya Birla Group, 2002 Aditya Birla Group, 2002
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Aditya Birla Group leadership
The First Venture
Sumant returned to India as Chief Financial Officer of the Aditya Birla Group, working through a period of significant expansion and major acquisitions.
2002
He founded Aditya Birla Retail and led it as Chief Executive Officer.
At Suzlon, 2008
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Turning to Energy
2008–2010
At Suzlon, Sumant moved from finance and corporate leadership into the operational reality of India's wind energy sector. Here, he saw the scale of India's energy demand and the gap between what the country needed and what existed.
2011
In January 2011, Sumant founded ReNew, bringing together his experience across engineering, institutions, capital, entrepreneurship and energy.
At Suzlon, 2008 Groundbreaking of first wind project with Prime Minister Modi, Jasdan, Gujarat, 2011
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