For years he has been fighting for the preservation of forests in the Himalayas, first as a member of the Chipko movement in the 1970s, and later spearheaded the Anti-Tehri Dam movement starting 1980s, to early 2004.
Selama bertahun-tahun, ia berjuang untuk preservasi hutan di Himalaya, mula-mula sebagai anggota gerakan Chipko pada 1970an, dan kemudian mengepalai gerakan Anti-Bendungan Tehri dari 1980an, sampai awal 2004.