Pradip Krishen was a feature film director before he became a naturalist. He is the author-photographer of bestsellers, Trees of Delhi: A Field Guide and Jungle Trees of Central India. Some of his well-known films include Massey Sahib and In Which Annie Gives It Those Ones. He has also directed re-wilding operations at Rao Jodha Desert Rock Park in Jodhpur city. He now calls himself an ‘ecological gardener’.