This is a traditional chutney made from the leaves of Plectranthus amboinicus, often called ‘Indian Oregano’. The leaves have many traditional
medicinal uses, and have been used for treatment of everything from
malarial fever to epilepsy. In many Indian households it is
commonly used to treat cough and colds.
I have a small potted plant in which I grew these leaves; they are very aromatic.
For the Doddapatre Tambuli Chutney, the leaves have to be roasted until they wilt completely, otherwise they irritate the mouth. In the bottom left photo you can see the wilted leaves mixed with coconut and green chillies.
There's a traditional recipe here, which you can follow: http://www.manethindi.com/2011/03/doddapatre-tambuli-chutney.html