Explanation:

The chipko movement began in the year  of  1973  in  the Tehri Garhwal region. It was a form of organised resistance against destruction of forests. The local village women prevented the felling of trees by hugging them highly. The word ‘chipko’ means to ‘stick around’ or to ‘hug’. The movement originated in the Himalayan region of Uttar Pradesh (later Uttarakhand) in 1973 and quickly spread throughout the Indian Himalayas.Hence option 3rd is correct.