Our story begins amidst the lush landscapes of Darjeeling, a region renowned for its exquisite tea estates and breathtaking scenery.

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By 2017, however, Darjeeling's tea industry was in deep crisis: political strikes, counterfeit teas, and climate change threatened their legacy. 

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Facing the industry's collapse, the Agarwal family nearly sold their estate. However, after a visit to their heritage Selim Hill Garden, the Agarwal brothers—Shrey and Sparsh—felt a renewed sense of purpose. They decided to stay and fight for the estate's revival. 

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To address the crisis of counterfeit Darjeeling tea and dependence on middlemen, Sparsh launched Dorje Teas, a direct-to-consumer brand, delivering authentic Darjeeling tea fresh from their farms straight to homes across India.

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As the brothers settled into the Second Chance House and Dorje Teas gained momentum, a community of friends and supporters rallied around them. This led to the formation of the Selim Hill Collective—an informal group focused on reimagining the tea estate model.

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Recognizing Darjeeling's unique suitability for Enhanced Rock Weathering (ERW) due to its soil type, climate, and proximity to river networks, the brothers launched Alt Carbon in early 2023. 

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With a vision to scale up to 500,000 hectares by 2030, Alt Carbon is redefining the role of tea estates as frontiers of climate action, giving Darjeeling a second chance not just to survive but to thrive.

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Our Story

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Shrey Agarwal

Chief Executive Officer

Chemistry & Mechanical

Engineering, BITS Pilani

Sparsh Agarwal

Chief Commercial Officer

International Climate Law,

University of Oxford

Dr. Sambuddha Misra

Chief Scientist

University of Cambridge

Ph.D, Florida State University

The anti-Carbon team

The anti - Carbon team

How to work with us :