Chipko Movement started by Sundarlal Bahuguna in early 1970's in these hills of Uttarakhand:

 a) Seshachlam hills
 b) Pala kondalu
 c) Veli kondalu
 d) Garhwal hills

Telenagan DEECET-15

Garhwal hills. Garhwal Himalayas became the centre for a rising ecological awareness of how reckless deforestation had denuded much of the forest cover, resulting in the devastating Alaknanda River floods of July 1970, when a major landslide blocked the river and affected an area starting from Hanuman chatti, near Badrinath to 350 km downstream till Haridwar.