Madhav Dhananjaya Gadgil, one of India’s most influential ecologists and a towering voice in the country’s environmental discourse, passed away in Pune on 7 January 2026. He was 83. With his death, India has lost not just a scientist of global stature, but a rare public intellectual who insisted that ecology, democracy and social justice must walk together.
An academic, writer, columnist and institution-builder, Mr Gadgil was best known to the wider public as the chairman of the Western Ghats Ecology Expert Panel (WGEEP), whose 2011 report, later called the Gadgil Commission, sparked a national debate on development, conservation and the limits of ecological exploitation. To generations of students and researchers, he was also the founder of the Centre for Ecological Sciences at the Indian Institute of Science (IISc), Bengaluru, and a pioneer who brought quantitative rigour and ethical urgency to ecological research in India.
Born on 24 May 1942 in Pune, Mr Gadgil grew up in a household steeped in scholarship and public service. His father, Dhananjay Ramchandra Gadgil, was a noted economist and the architect of the Gadgil formula, while his mother Pramila nurtured a deep respect for learning. That intellectual inheritance, colleagues often recalled, shaped his lifelong belief that science must ultimately serve society.
After graduating in biology from Fergusson College in 1963 and completing his master’s degree in zoology at Mumbai University in 1965, Mr Gadgil left for Harvard University. What began as an interest in fish taxonomy soon evolved into a deeper engagement with ecology and evolution, influenced by the lectures of EO Wilson. Under the guidance of William Bossert, he completed a PhD in 1969 on mathematical ecology and animal behaviour, a thesis that later came to be regarded as a citation classic.
The US offered him an enviable academic future. He held an IBM Fellowship, worked at the Harvard Computing Center and taught biology at Harvard. Yet, in 1971, he chose to return to India, a decision that would define the rest of his life’s work. After a brief stint at the Agharkar Research Institute in Pune, he joined IISc in 1973, beginning a three-decade association that transformed ecological studies in the country.
At IISc, Mr Gadgil established the Centre for Ecological Sciences and the Centre for Theoretical Studies, helping create an interdisciplinary space where ecology, mathematics, social sciences and policy could intersect. Students remember him as a demanding yet deeply generous mentor, one who encouraged independent thinking and moral clarity alongside scientific excellence.
His influence extended well beyond academia. In the mid-1970s, a study he conducted on Karnataka’s bamboo resources prompted the state government to reconsider subsidies to forest-based industries. Between 1986 and 1990, he served on the Scientific Advisory Council (SAC) to the prime minister (PM), contributing to the creation of India’s first biosphere reserve in the Nilgiris. He later chaired the science and technology advisory panel of the global environment facility under the United Nations (UN) and served on several national bodies, including the National Tiger Conservation Authority and the National Advisory Council.
It was, however, the Western Ghats ecology expert panel that placed Mr Gadgil firmly in the public spotlight. Tasked in 2010 with examining ecological issues in the Western Ghats, the panel recommended that around 64% of the region be declared an ecologically sensitive area. The report was welcomed by environmentalists but met with resistance from several state governments and other interest groups. While many of its recommendations were later diluted by the Kasturirangan Commission, the Gadgil report endures as a landmark document, one that foregrounded local participation, ecological limits and the rights of future generations.
Mr Gadgil consistently argued that humans are not external to ecosystems but integral to them and that conservation without social equity is neither ethical nor sustainable. This philosophy also informed his work on the Biological Diversity Act, 2002, and the People’s Biodiversity Registers, which sought to document and respect local ecological knowledge.
A prolific writer, he authored or co-authored several influential books, including This Fissured Land and Ecology and Equity with Ramachandra Guha, works that reshaped how India’s environmental history was understood. Equally at ease in English and Marathi, he wrote extensively for academic journals, popular science magazines and newspapers, including a much-read natural history column in The Hindu and a monthly column in Sakal.
Despite his scholarly gravitas, Mr Gadgil remained grounded. A keen athlete in his youth, he once held state and university high jump records. He shared a deep intellectual partnership with his wife, Sulochana Gadgil, a distinguished meteorologist, who passed away in July 2025. He is survived by their son, a mathematician, and their daughter, a journalist and Spanish teacher.
Honours followed him through his life: the Padma Shri in 1981, the Padma Bhushan in 2006, the Shanti Swarup Bhatnagar Prize, the Volvo Environment Prize, the Tyler Prize for Environmental Achievement, and the United Nations’ Champions of the Earth award in 2024. Yet those close to him say he wore accolades lightly, measuring success instead by the questions his work forced society to confront.
In 2021, a tree species discovered in Kerala’s Nelliampathy hills was named Elaeocarpus gadgilii—a fitting tribute to a man whose life was devoted to understanding and protecting the natural world.
Madhav Gadgil leaves behind a formidable intellectual legacy and an unfinished conversation about how India chooses to grow. In forests, classrooms and policy debates across the country, his voice, insistent, reasoned and humane, will continue to be heard.
