Dr. Hariharan Chandrashekar is a pioneering Indian ecological economist and urban sustainability leader, best known for founding the citizen‑driven WOW Action Forum and the multi‑city WOW Partner City Network across South Asia, Africa and the Americas. He mentors green enterprise and entrepreneurship through SAANSS and Foundation Green, and guides industry and academic sustainability programmes, including deep‑green Net Zero Water and Energy peer reviews. Over a 30‑year career, he has founded and led ventures such as ZED Homes, Biodiversity Conservation India Ltd. and the AltTech Foundation, driving zero‑energy and low‑carbon building strategies. Dr. Chandrashekar serves as trustee or advisor to multiple organisations (AltTech Foundation, Prem Jain Memorial Trust, INHAF, IGBC, ISHRAE, FOCUS, ACCE) and collaborates with government bodies and international agencies to advance resilient, demand‑side solutions in water and energy management.