Former TERI chief R.K. Pachauri, who was admitted to a hospital for cardiac ailments, passed away on Thursday.
In a statement, his family said Pachauri underwent a major heart surgery before succumbing to his deteriorating health.
"His courageous leadership allowed climate change to be recognized world over as the most pressing issue confronting the world and launched a new era of worldwide deliberations and actions", it said.
TERI, short for New Delhi-based The Energy and Resources Institute, has showed their condolence over Pachauri's demise.
"TERI is what it is today because of Dr Pachauri's untiring perseverance". Terry issued a press launch saying that the whole Terry household is standing with Dr. Pachauri's household on this hour of grief.
Professor Jean-Pascal van Ypersele, IPCC vice chairman from 2002-2015, said coming from a developing country, Pachauri should be credited for drawing the attention, long before others, to the importance of finding synergies between climate policies and sustainable developing agenda. The High Court had dismissed the petition filed by Terry's former female employee urging him to stay the proceedings before the Industrial Tribunal.
With his death, the case is likely to be abated.
Indian environmentalist Rajendra Kumar Pachauri, under whose leadership a United Nations climate change panel shared the 2007 Nobel Peace Prize, has died after recent heart surgery.
Pachauri won civilian awards from India's government in 2001 and 2008.
TERI chairperson Nitin Desai also hailed Pachauri's contribution to global sustainable development as "unparalleled".
Born on August 20, 1940 in Nainital, Pachauri began his career with the Indian Railways at the Diesel Locomotive Works in Varanasi.