Sanjay Gandhi National Park
The Sanjay Gandhi National Park area has a long written history dating back to the 4th century BCE. In ancient India, Sopara and Kalyan were two ports in the vicinity that traded with ancient civilisations such as Greece and Mesopotamia. The land route between these two ports was partially through this forest.
Save Silent Valley
Ten months later, on 7 September 1985 the Silent Valley National Park was formally inaugurated and a memorial at Sairandhri to Indira Gandhi was unveiled by Rajiv Gandhi, the new Prime Minister of India. On 1 September 1986 Silent Valley National Park was designated as the core area of the Nilgiri Biosphere Reserve.