This document discusses several influential individuals in India's environmental history over the last century, including conservation scientists, administrators, lawyers, and activists. It profiles Salim Ali, known as the father of Indian ornithology; Indira Gandhi, who played a key role in expanding India's protected areas as Prime Minister; S.P. Godrej, who received several awards for his conservation work; and M.S. Swaminathan, an agricultural scientist also concerned with biodiversity conservation. It also mentions ecologist Madhav Gadgil, environmental lawyer M.C. Mehta, journalist Anil Agarwal who founded the Center for Science and Environment, activist Medha Patkar who supported tribal communities affected by dams,